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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
I'm terribly sorry about that.
为此我非常抱歉。
Love is sweet in the beginning but sour in the ending.
爱情始甜而终苦。
The Scandinavian countries are much admired all over the world for their enlightened social policies.
斯堪的纳维亚半岛各国实行开明的社会政策，受到全世界的推崇。