进一步理解需要.NET 3.0/3.5/4.0的几个概念：弱事件（weak event）、弱事件管理器（WeakEventManager）、lambda表达式、分派器（dispatcher），等等。
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Weak Event Listener 弱式事件接听程式
weak monsoon event 弱季风事件
weak event
弱事件
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Who Should Implement the Weak Event Pattern?
谁应实现弱事件模式？
youdao
The weak event pattern is designed to solve this memory leak problem.
弱式事件模式就是设计来解决这个记忆体遗漏问题。
Implementing the weak event pattern is interesting primarily for control authors.
会对实作弱式事件模式有兴趣的人主要是控制项作者。
If the case for continuing to hold the investment is weak, a taxable event is a secondary concern.
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The upstart or young pretender KRW (South Korean won) is currently weak against the USD on event risk, but the market anticipates the currency to trade back to pre-crisis strength against the JPY.
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It allows you to hand-wave weak sales or bad reviews and blame outside factors like pirates or server failures in the event the game struggles.
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