Boiler scale
[机] 锅垢
🧩 词语组成解析
scale
[skel]
n. 规模;比例（尺）;鱼鳞;级别;
vt. 测量;攀登;刮去…的鳞片;
vi. 衡量;攀登;（鳞屑）脱落;生水垢;
scale(climb)→登；爬越；音阶；比例尺；规模；尺；尺上的刻度
🗣️ 情景例句
Because the job was not challenging enough.
因为那份工作挑战性不够。
The doctor advised me to take better care of myself.
医生劝我要多照顾自己。
When did you last go to the seaside?
你上一次是什么时候去海滨的？