词典上对 unexpectedly 的解释是: 未料到地,意外地。

但结合句子来翻译有时不好做。比如下面的句子：

He wasn’t at home when I went there. He might have had to go out unexpectedly. 

参考译文：当我去那里的时候，他却不在家，他可能是因突然有事情必须要出去。

unexpectedly adv. 未料到地，意外地；竟；居然；骤然

Moss had clamped an unexpectedly strong grip on his arm.

莫斯突然紧紧抓住他的手臂。

The Indians came out unexpectedly, catching the soldiers off-guard.

印第安人突如其来地出现，令士兵们猝不及防。

He wasn’t at home when I went there. He might have had to go out unexpectedly. 

【翻译】我去的时候他不在家。他可能也没想到非出去办事不可。

unexpectedly 仍然是它的本义。把它稍微引申一下，就好理解了，翻译为“没想到；突然”即可。

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