before – phrases

English	Chinese
Furthermore, field measurements of detonation gases are subject to variability in all the factors mentioned before, and at best could provide a certain range of results	此外、对爆生气体的实地测量受上述所有因素变化无常的影响、所以测量结果是一组范围值
No one dare undertake that he can come before five	谁也不敢保证他五点前能来
The messenger undertook to get to his destination before daybreak by taking a short-cut	通信兵想抄近路争取在天亮之前赶到指定位置