Back coordination
[化] 反馈配位
🧩 词语组成解析
back
[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;
🗣️ 情景例句
How much will it be?
要多少钱？
Pat's results are in agreement with the textbook experiment.
柏德获得的实验结果和课本一致。
Every day he does the same thing. Why doesn't he use the lift for the last three floors?
每天他都这样度过。为什么上最后3层楼他不用电梯呢？