荨麻长有四方茎和细小茸毛。The stinging nettle has a square stem and little hairs.整株植物都覆盖着细茸毛。The whole plant is covered with fine down.棉花在植株上作为附着在种籽上的长茸毛在棉铃里生长发育.The cotton grows on the plant as long hairs attached to the seeds insid...
His greatest innovation was the use of interchangeable parts.他最大的革新在于使用了可互换的零件。These parts are fully interchangeable with those in other machines.这些零件完全可以同其他机器的零件相互替换.Matter and energy are equal and interchangeable.物质和能量...
他在不失礼的情况下尽可能快地进餐。He attacked the food as quickly as decent table manners allowed.抽烟有时被认为是失礼的.It is sometimes considered bad form to smoke.用手指指人是很失礼的.It's rude to point your fingers at people....