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[化] 反馈键
🧩 词语组成解析
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[bæk]
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
n. 结合, 屏蔽接地, 搭接\\n[计] 压焊
🗣️ 情景例句
And you saved it for me, didn't you, Mother?
也留着要给我， 对吗， 妈妈？
I must admit I had my doubts.
我必须承认我当初是我疑虑的。
I think you probably know China has adopted a flexible policy in her foreign trade.
我想你也许已经了解到中国在对外贸易中采取了灵活的政策。