1. 被动式：一般应采用过去式(past tense),因为整个实验都是做过了的,但是当所写的是已经证明了的事实或定理时,应采用现在式(present tense). 另外,需要注意实验里的仪器和药品应采用被动式(passive voice)④. 一般英文实验报告书写格式可如下:

2. 被动句：体积目标:passive | 被动句:Passive Voice | 被动句:passive-sentence

4. passive voice在线翻译

noun

1. the voice used to indicate that the grammatical subject of the verb is the recipient (not the source) of the action denoted by the verb

e.g. `The ball was thrown by the boy' uses the passive voice
`The ball was thrown' is an abbreviated passive

Synonym: passive