基本解釋[地球科學(xué)]守望相助英漢例句雙語(yǔ)例句A real good friend should be one offering timely help.真的好朋友應(yīng)該是雪中送炭。offering timely help更多例句專(zhuān)業(yè)釋義地球科學(xué)守望相助