Natrometer
测钠计, 钠量计
🗣️ 情景例句
I never liked that umbrella stand.
我一直嫌那伞架碍事。
Business is business.
公事公办。
After crossing the Equator, the captain called in at a port to have a new rudder fitted,
跨越赤道后，船长将船停靠在一个港口，在那儿换了一只舵。