1 (used for stating what would happen if you do not do sth or if sth does not happen) if not （用于指出如不做某事或某事不发生就会如何）否则，不然: You have to press the red button, otherwise it won't work. 你得按那红色的按钮，否则机器就不会开动。

2 apart from that 除此以外: I'm a bit tired but otherwise I feel fine. 我有点累，但除此以外，我觉得还好。

3 in a different way to the way mentioned; differently 以其他方式；不同地