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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
Oh, I'm sorry it hurts so much,
啊， 我很抱歉 ，你那么痛。
The first several months were a difficult time.
所以头几个月过得有些艰难。
It comes nearer to the engines with which man has 'conquered' the air, as he boasts.
它更近乎于人类自夸的“征服”了空气的发动机。