问题描述: run out of 1个回答 分类:英语 2014-10-25 问题解答: 我来补答 失去动力,筋疲力尽 [例句]American household demand won 't pick up when the temporary growth factors run out of steam.当目前增长失去动力之时,美国家庭需求也无法重拾升势. 展开全文阅读