run-down adj. 破敗的;衰弱的 n. 刺殺出局;總結(jié)run-by-the-local-people 民營run-back reset [物理學(xué)]回退歸復(fù)run-away mechanism [體育]逃離機(jī)制run-away electron 脫逸電子run-away effect 脫逸效應(yīng)run-away n.-ways 逃跑者run-around table [材料科學(xué)]環(huán)行輥道run-around n. 遁詞;借口run with 鼓勵;與…一起跑;與…交往run wild 失去控制;變得荒蕪run upon 撞上;偶遇;縈繞著run up v. 匆匆制成;積欠;迅速積累;向上跑;高漲run untrue 跳動運轉(zhuǎn)run true to form 一如既往run together 一起跑 一起運行 一起操作run to and fro 東奔西走run time 運行時間;電腦運作時間run through 跑著穿過;瀏覽;刺;揮霍run the whole show 包辦