wavy
aim的用法说明
'aim的用法说明 1. 不管用作名词还是动词,其后均常接介词 at。如。如:He aimed hisgun at the bird, but did not fire. 他用枪瞄准鸟,但没开枪。He took aim at...'
generation的用法说明
'1. 表示“ (一)代”或“ (一)辈”,是可数名词。如:Members of myfamily have lived in this house for generations. 我们一家世世代代住在这座屋里。Grandfathe...'