while

conj.当…的时候；而 a.一会儿

whenever, where, whereabouts, whereas, whereby, wherein, whereof, whereupon, wherever, wherewithal, whet, whether, whether...or, whether...or not, whetstone, whew (also phew), whey, which, whichever, whiff, while away, whilist, whilst, whim, whimper, whimsical, whimsicality, whimsically, whimsy, whin, whine, whinny, whip, whip-round, whipcord, whiplash, whipper-in, whipper-snapper, whippet, whipping,