在所有简单无害的娱乐项目背后都隐藏着危险，特别是对儿童而言。Under all the innocent fun, there are hidden dangers, especially for children.即使无害的物质在药物测试中有时也会呈阳性.Even innocuous substances can sometimes register a positive result in a drug test.其中一部分被吸收,...
We spent years travelling around in a rusty old van.我们多年来都开着一辆生锈的旧货车四处旅行。A thin curl of smoke rose from a rusty stove.生锈的炉子里冒出一缕青烟。To keep warm they burnt wood in a rusty oil barrel.他们在一只生锈的油桶里烧木柴来保暖。...