Ceriometry
[建] 硫酸铈滴定(法)
🗣️ 情景例句
spending so much time together?
老是在一起呢？
To enter outer space
飞出大气层，进入外太空
He found it very difficult to get to sleep and he was rather angry with the man upstairs.
他觉得这样很难入睡， 他对楼上的人相当生气。