Question

英语翻译1.离开实验室之前,请检查一下以确保所有的灯都关了(make sure) 2.万一发生什么不愉快的事情,请给我打

Answer 1

1.Before leavimg the lab room,you should check to make sure that every light is shut off.

2.Please ring to me in case that something unhappy thing happens.

3.Before we having a winter holida...