一rwise用作副词，表示用别的方法，不同地；
He says it's genuine, but we think otherwise.
他说这是真的,但我们不这样认为。
They should have been working, but they were otherwise engaged.
他们应该在工作,但他们却干别的事。
The soup was cold, but it was an otherwise excellent.
除了汤是凉的.以外,那顿饭菜是很好的。
二rwise用作连词，表示否则，要不然；
You'd better go now, otherwise you'll miss the train.
你最好现在就走,要不然就赶不上火车了。
You should be more careful, otherwise you might meet with some accident.
你应该更加小心,要不然你会出事的。
三rwise用作形容词，表示不同的；
The truth is quite otherwise.
实情大有出入。
四rwise than 除…之外
unless otherwise stated 除非另作说明...
but otherwise 但在别的方面却...