Backwash controller
[化] 返洗液控制器
🧩 词语组成解析
n. (划桨引起的)反流, 激流区, 反响\\n[机] 逆吹
controller
[kən'trəulə]
n. 管理者;控制者;（机器的）控制器;（公司的）财务总管;
🗣️ 情景例句
Susan and Harry have a sitter for Michelle in the city,
Susan和Harry在城里给Michelle找到一位临时保姆，
My handkerchif is grey.
我的手帕是灰色的。
It was used for keeping tea hot after it was made,said Wei Hua. It was filled with hot water.
“那是在茶沏好后用来保温的，”魏华说，“用来装热开水的。”