Back coat
底面涂层
🧩 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;
coat
[kəut]
n. 上衣，外套;
vt. 给…穿上上衣[外套];盖上;
🗣️ 情景例句
Yes. Here's the survey report issued by the Health Office, which is absolutely reliable.
有。这是由卫生检疫所签发的检验报告，它是绝对可靠的。
After dinner comes the reckoning.
吃喝玩乐，该付代价。
Really? What's the trouble?
真的？怎么啦？