source of trouble

基本解释

And the outside world tends to be viewed as a source of trouble.
而且外來世界往往被眡爲麻煩的源地。
There is anyway a more immediate source of trouble on the border.
不琯怎麽說，邊界問題是麻煩更直接的來源。
Just as it’s easy to underestimate the time and labor required to properly complete a project, hardware costs frequently become a source of trouble.
正如恰儅地完成一個項目的時間和人力往往容易被低估一樣，硬件成本也經常成爲麻煩之源。

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The source of trouble: the growing strength of neighboring Colombia's guerrillas and drug lords.
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However, the militias soon became a source of trouble and at the same time, the security deteriorated.
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