马克走在前面，听不见他们的声音。Mark was out of earshot, walking ahead of them.他在前面的草坪上丈量并标记出两个圆圈。He was on the front lawn, measuring out two circles.他们派两人在前面侦察。They sent two men out in front as scouts....
汤姆承认玩电子游戏有时会使他无心做作业。Tom admits that playing video games sometimes distracts him from his homework.妈妈说我可以到外面花园里玩。Mummy says I can play out in the garden.他们又是跳绳，又是玩接球，等着上课铃声响起。They skip rope and play catch, waiting for the...
三聚氰胺是如何掺入小麦麸子的 呢 ?How did the melamine wind up in the wheat gluten?有关官员称就是检测了这些小麦麸子, 也不可能检测到三聚氰胺.And if the wheat gluten was , officials said, it wouldn't have been tested for melamine.三聚氰胺是如何掺入小麦麸子的 呢 ?调查者尚不清楚.How ...