Back flushing
[化] 反洗; 逆流洗涤; 反吹
🧩 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;
[计] 冲洗\\n[化] 涌料
🗣️ 情景例句
I have just begun to learn and my serve isn't very good.
我刚刚开始学习，发球不太好。
These shoes are worn-out.They've lasted a long time.
这些鞋子旧了。已经用了很长时间了。
The terrible secret is called 'a skeleton in the cupboard'.
惊人的秘密称作“柜中骷髅”。