corrugate
v[I, Tn usu passive 通常用於被動語態(tài)]
be shaped or shape (sth) into folds, wrinkles or furrows (使某物)起皺褶, 起皺紋, 起波紋
His brow corrugated with the effort of thinking. 他皺著眉頭用心地思考.
muddy roads corrugated (ie rutted and furrowed) by cart-wheels 被大車壓出了一道道轍印的泥濘的道路.
??? 情景例句
in the past few weeks.
在最近幾個星期。
Never (or Don't) trouble trouble till trouble troulbes you.