On our trip we noticed that whatever disastrous situation ducks are in, they always look peaceful.
在旅途中我们注意到不管鸭子处在什么样极端的环境之下,它们总是能保持一种宁静的姿态。
Different from making a mistake in China, when you are abroad, a slight mistake can cause a disastrous situation, because you don't have as much as you have in China to compensate this mistake.
与在国内犯错的情况不同,在国外,一个很小的错误就可能造成无法收拾的局面,因为你不像在国内那样拥有很多可以对错误进行弥补的资源。
This disastrous situation must be avoided by design if the water side is exposed to the city water system because the collector loop eventually fills with water, and all freeze protection is lost.
这种很严重的状况,如果水侧暴露至城市系统,则必须通过设计避免,因为收集器回路最终会用水充满,且所有冻结保护都失去。
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