When you are sitting, keep your elbow on the arm rest.坐立时，把胳膊肘靠在扶手上。He wolfed down the rest of the biscuit and cheese.他把剩下的饼干和奶酪一扫而光。She volunteered as a nurse in a soldiers' rest-home.她自告奋勇到士兵疗养院当护士。...
Nested classes can lead to more readable and maintainable code.内嵌类可以使得代码更易读和易维护.The database will to be easily maintainable and extensible.该数据库将需要易于维护和扩展.The house is so run down that it is hardly maintainable.这房子太破旧了,几乎...