🧩 词语组成解析
breadth
[brɛdθ]
n. 宽度;宽容;（知识、兴趣等的）广泛;
index
['ɪndɛks]
n. 索引;<数>指数;指示;标志;
vt. 给…编索引;把…编入索引;[经济学]按生活指数调整（工资、价格等）;
vi. [机械学]转位;
in(in)+dex(proclaim)→指针；索引；指数；食指；指标
🗣️ 情景例句
We're promoting you to a senior position effective immediately.
我们将马上给你升职。
Congratulations on the completion and opening of a new Beijing branch!
祝贺美国银行北京分行的建成和开业！
His father told everybody that Eric had been killed in action.
他的父亲告诉大家，埃里克在战争中被打死了。