some kind of homework,为什么kind不加s?什么情况下要加什么情况下不加S?

misses some kind of look like some kind of insectsome kind Some Kind Of Nature 歌词 Some Kind Of Love 歌词 Some Kind Of Wonderful 歌词 Some Bright New Kind of some kind of +名词复数中的kind是复数吗速速道来~ 英语翻译Mine is some kind of realationship . Some Kind Of Wonderful (Live) 歌词 (She'S) Some Kind Of Wonderful 歌词 妙不可言 SOME KIND OF WONDERFUL怎么样 some kind of tests?是kinds吧? misses some kind of temperature什么意思 Some one kind of love is called I got some kind of you, Stands in some street intersection,misses some kind of tem Stand in some street intersection,Miss some kind of temperature... some kind of还是some kinds of如题.kind究竟用不用加s