Guarding
[计] 保险
🗣️ 情景例句
Study hard and study everyday, if you want to master the English language.
如果你想精通英语的话，就得每天刻苦学习。
I am Chen Jianguo. I am from Shanghai, China.
我叫陈建国，来自中国上海。
There are eighteen floors in the building, and he lives on the fifteenth floor.
这幢大楼有18层。他住在第15层。