Precambrian
n. 前寒武纪, 前寒武纪岩
🗣️ 情景例句
Half that time in my own construction company.
一半时间是在我自己的建筑公司。
In elementary school,the child learns to read and write.
在小学，孩子学习读写。
One of the first jobs when you start work in an office is to learn how to use every piece of equipment.
你在办公室开始工作的第一件事就是要学会怎样使用办公室里的每样设备。