非原生语言使用者的第一类错误是返回一个表示错误的值，而不是抛出异常。
The first mistake that nonnative speakers make is to return a value indicating an error, instead of throwing an exception.
我国受威物种形势严峻，非原生境保护面临着场所较少、资金缺乏等问题。
The situation of endangered species in China is urgent for the reasons that the protection institutions are scarce and the special capital is not enough.
防治其它非原生寄主的天牛时，往往由于搜索寄主的能力不强也会导致防治效果不甚理想。
Prevents and controls other non-primary hosts when long-homed beetle, because often search host ability not also can cause the preventing and controlling effect really ideally not.
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