请问cover his mouth和open his mouth有区别吗

请问cover his mouth和open his mouth有区别吗 cover your mouth的意 请问:cover He opened his mouth as if he were to speak 和He opened his mouth as if he had spoken有什么不同 三星SCX-4521F出现Front or Rear,Cover Op cover by和cover with的区别 请问乳化剂的NP系列和OP系列是什么关系? a fork to his mouth怎样翻译 Surprised at the news,( )A.he opened his mouth B.his mouth had been opened C.he had opened his mouth D.his mouth was opened he eats with his mouth open. He [ ] them [ ] into his mouth.填空 英语翻译a fork to his mouth. his nose and mouth ____ big 请问 Duvet Cover中的cover是什么意思,是被罩吗 英语问题cover fire和suppression fire请问cover fire和suppression fire中的每个词性是什么,如果fire是动词,那么为啥是名词修饰动词呢? cover cover cover