get down to do还是get down to doing是开始从事的意思?

get down to do还是get down to doing是开始从事的意思? get down to后接do还是doing, get sb down后面加doing还是to do? get it down 还是 get down it get sb down 后面接 to do sth 还是doing sth?还是其他的? get down to 后加do还是doing,to什么时候作介词,什么时候作不定式 get down to翻译 get sb to do sth 还是get sb do sth? get down to business是什么意思 get on down to the Get down to the bone get down to business是什么意思 Get Down To It 歌词 get sb to do get sb.to do get to do sth. get sd to do get used to do