所以

所以 [suǒ yǐ]

1. ■ （表示因果关系） so; therefore; as a result:

他忙得很，所以没有来。 He was busy, therefore, he couldn't come.

因为他干活儿很仔细，所以连续6年不出废品。 Because he works very carefully, he has not produced a reject in the last six years.

他年纪大了，所以眼睛有点儿花。 He is old so his vision is dim.

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常用词组

1. ■ （表示“原因就在这里”） the reason why:

所以呀， 要不然我就不来这了。 That's just the point, otherwise I wouldn't come here.

我所以对他熟悉， 是因为我和他一起工作过。 I know him well because he was formerly my fellow worker.

2. ■ （表示实在的情由或适宜的举动）:

忘其所以 forget oneself;

他的成就使他高兴得忘乎所以。 Overwhelmed by his achievements, he lost his reason.