形容词active的用法
形容词active的用法 其基本义为“活动的,活跃的,积极的”,注意以下用法:1. 可用作表语和定语 Although he is over 80, he is stillvery active. 他虽然年过80岁,但他还是很活跃。/ He is o...
since的四种用法
11.13 since的四种用法 1) since +过去一个时间点 (如具体的年、月、日期、钟点、1980, last month, half past six)。 I have been here since 1989. 2) since +一段时间+ ago I have been here since five months ago. 3) since +从句 Grea…...