Brief reviews are authoritative, but without references.
简洁的回顾是权威性的，但无参考资料。
In the previous installment, we saw how weak references can provide an application with an alternate means of reaching an object while it is used by the program, but without prolonging its lifetime.
在前一期文章中我们看到了，弱引用如何可以给应用程序提供当对象被程序使用时另一种到达该对象的方法，但是不会延长对象的生命周期。
I'd applied at retail stores, but without local references shopkeepers were reluctant to let me handle cash.
我到一家零售商店去应聘，但没有当地人的推荐，店主们不愿让我接触现金。
应用推荐