Billy leaned forward and brushed a speck of dust off his shoes.比利俯身擦掉了鞋子上的一丝灰尘。I've got a speck of dirt on my shirt.我的衬衫上有一点污垢.Not a speck of cloud is to be seen.看不到一星星云丝....
7岁的孩子中1/4以上都不会正确地做加法运算。More than a quarter of seven year-olds cannot add up properly.你谅必在商店里见过现金收入记录机,它基本上只能做加法运算.In shops you will have seen cash registers which basically can only add.这个小女孩不太善于做加法.The little girl is no...
This area is always tender to the touch if the intestines are not functioning properly.如果肠功能不正常，这个部位碰一下就会感到疼痛。Problems arise when the body’s immune system is not functioning adequately.免疫系统不能充分发挥作用时，身体就会出现问题。The authorit...