He was wearing a vest __his shirt如题（介词填空）.另外请问while跟when 什么区别
问题描述：
He was wearing a vest __his shirt
如题（介词填空）.另外请问while跟when 什么区别
答
你好,新鲜百分百针对你的两个疑问,分点回答,稍为繁复,希望多一点参考,帮助你消疑解惑.1.He was wearing a vest under his shirt.填空介词“under”或者“underneath”.特参考于某外文网站,保证正品.例：Do you wear ...