Eskalith
碳酸锂制剂的商品名
🗣️ 情景例句
How long does it take you to get through a letter?
你写一封信要花多少时间？
The best man stumbles.
智者千虑，必有一失。
It is impossible to give a satisfactory explanation for a pot-holer's motives.
要想对洞穴探险者的动机作出满意的解释是不可能的。