In this sentence

①go / live / study abroadadv.在国外；到海外

Synonymsoverseas

在本句中，abroad 修饰动词 study，表示学习发生的地点是“在国外、到海外”，属于最核心的副词用法。

• She decided to study abroad for a year to improve her Spanish skills.她决定出国留学一年，以提高西班牙语水平。

②from / to abroadadv.国外；海外

Synonymsoverseas

• Wisdom comes not from abroad, but from the deep understanding of one's own heart.智慧非由外邦而来，而是源自对自己内心的深刻理解。

③be abroadadv.流传；四处走动

Synonymscirculating, around, current

• A lie will go round the world while truth is pulling its boots on, especially when fear is abroad.当恐惧四处弥漫时，真理还在穿靴子，谎言早已跑遍了半个世界。

In this sentence

①board of sthn.委员会；理事会/董事会

Synonymscommittee, council, commission

句中“Board of Trade”特指官方设立的贸易委员会或贸易部，首字母大写作为专有名词，board 在此指由官方或专业人士组成的委员会机构。

• The board of directors approved the new budget yesterday.董事会昨天批准了新的预算方案。

②board a plane / train / shipv.登（机、车、船）

Synonymsembark, mount, enter

• You cannot board the train of tomorrow while clutching the luggage of yesterday.紧抓着昨日的行囊，便无法登上驶向明天的列车。

③a notice / message / chess boardn.木板；布告板/棋盘

Synonymsplank, panel, slate

• She pinned the announcement onto the bulletin board.她把通知钉在了公告栏上。

④board and lodgingn.伙食；膳宿中的膳食

Synonymsmeals, food

• True wealth is not measured by lavish board and lodging, but by the peace within one's mind.真正的财富不在于丰盛的膳宿，而在于内心的宁静。

In this sentence

①board of sth / Board of Traden.委员会；理事会（原句为 board 原形的名词用法）

Synonymscouncil, committee, directorate

原句中实际使用的是名词原形 'Board'（Board of Trade 指贸易委员会/贸易局）。学习者划选可能带入了分词形式，在此作为词根核心用法解析。

• True leadership is about stewardship, not merely occupying a seat on a board.真正的领导力在于担当与奉献，而不仅是在理事会中占有一席之地。

②boarding (of a flight / train)n.登机；上船；上车

Synonymsembarkation, entrainment

• Life is a journey of constant boarding and departing; cherish each station along the way.人生是一场不断登程与离别的旅途；请珍惜途经的每一站。

③boarding schooln.寄宿（就读于寄宿学校）

Synonymslodging

• Boarding school gave me a sense of independence that I wouldn't have had otherwise.寄宿学校赋予了我一种非此便无法获得的独立感。— Tom Hiddleston

①a broader range / spectrum / variety of sthadj.更广泛的；更多样的

Synonymswider, more varied, more diverse

• We must embrace a broader range of perspectives to understand the world.我们必须接纳更广泛的视角，才能理解这个世界。

②in a broader context / senseadj.更宏观的；大局上的

Synonymswider, more comprehensive, overarching

• It is in a broader context that individual struggles gain their true meaning.只有置于更宏观的背景之下，个人的奋斗才能获得其真正的意义。

③have broader shoulders / a broader smileadj.更宽阔的；更展平的

Synonymswider, larger

• Stronger challenges require broader shoulders to carry the weight.更艰巨的挑战需要更宽阔的肩膀来承担其重负。

In this sentence

①bypass sthv.绕过，规避（规则、障碍或限制）

Synonymscircumvent, evade, dodge, sidestep

句中 bypass 与 blocks（封锁/阻碍）搭配，表示用户通过技术手段绕开网络封锁，属于规避规则或限制的引申用法。

• True transformation comes from facing our struggles, not bypassing the lessons they are here to teach us.真正的转变来自于直面困境，而不是规避困境原本要赋予我们的经验与教训。

②bypass sb / sthv.越过（上级或既定流程）直接行动

Synonymsskip, ignore, override

• True change begins by bypassing conventional gatekeepers and trusting your own voice.真正的改变始于绕过传统的把关者，转而相信你自己的声音。

③bypass sthv.绕道，绕开（某一地点）

Synonymsgo around, detour

• Wisdom often lies in bypassing troubled waters rather than insisting on sailing straight through them.智慧往往在于绕开暗礁险滩，而非执意逆浪直前。

In this sentence

①dialogue with sb (on/about sth)n.（国家、团体间的）正式对话；磋商与谈判

Synonymstalks, negotiation, discussion, consultation

句中指中美两国在人工智能领域展开的官方正式会谈与沟通机制，常用于政治、外交语境。

• Dialogue with other nations does not require us to abandon our values; it allows us to project them.与其他国家展开对话并不要求我们放弃自身的价值观，反而让我们得以彰显这些价值。— Barack Obama

②dialogue between sbn.（人与人之间的）对白；日常交谈

Synonymsconversation, chat, exchange

• Peace cannot exist without dialogue between people.人与人之间若没有对话，和平就无从谈起。

In this sentence

①obligate sth (for sth)v.拨出（专款）；承诺支付

Synonymscommit, earmark, allocate

在政府采购和公共财务语境中，obligate 是专业术语，指机构正式签署合同或下达订单，将某笔预算资金“预留/承诺”用于支付该开销（即法律上已产生支付义务）。本句中 'what an agency has obligated' 指机构已正式承诺/拨出的预算额度。

• Wisdom is knowing what resources to obligate today so that tomorrow may not be spent in regret.智慧在于懂得在今天拨出何种资源，才不至于让明天在懊悔中度过。

②be obligated to do sthadj.有义务做某事；被迫做某事

Synonymsbound, required, compelled, obliged

• We are not obligated to win. You are obligated to be true to the something you have on the inside of you.我们并非非赢不可。你唯一的义务，是忠于自己内心的真实。— Marian Wright Edelman

③obligate sb to do sthv.使某人有义务做某事；约束

Synonymsbind, require, compel

• Kindness does not obligate someone to return the favor; it merely invites them to pass it on.善意并不强求他人回报，它只是邀请他人将这份温暖传递下去。