《英语相关词语辨异词典》(外研社, p. 309) 强调指出：“or 是个连词，而 otherwise 是个副词，不容混淆。”
请问 otherwise 果真不能用作连词吗?
otherwise 既可用作副词(意为:“在其他方面”“除此之外”“别样”“不然的话”),亦可用作连词(意为:“否则”“要不然”)。例如:
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The house is a bit small, but otherwise it's very nice. (副词) 这所房子小一点儿, 除此之外倒都很好。
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Their plane was late but otherwise they had a good trip. (副词) 他们的飞机晚点了,但除此之外他们的旅途还是很愉快的。
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I can't say otherwise ... 我不能不这样说……
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Hurry up, otherwise you'll be late. (连词) 快点儿吧,要不你就迟到了。
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Take a taxi, otherwise you'll miss your train. (连词) 叫一辆出租汽车吧,要不然你会误了火车的。
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You have a key and a personal account number known only to you. Your key is only half of your identification. Your personal account number is the other half. Otherwise, if you lost your key, anyone could use it. (Dan Brown, The Da Vinci Code) 你应该有一把钥匙和只有自己知道的个人账号。你的钥匙是你身份证明的一半。你的个人账号则是你身份证明的另一半。否则，假如你丢了钥匙，谁捡去了都可以用。（《达·芬奇密码》）