如果不需要就不要使用它。

Don't use it if you don't need it.

youdao

如果您碰巧找到了它的安装包，最好不要使用它。

If you happen to find an installation package, you'd probably be better off ignoring it.

youdao

如果你的水肺潜泳设备不合标准，就不要使用它。

Unless your scuba diving equipment is up to standard, do not use it.

youdao

Except,I mean,you could use it, but not use it as authoritative.

我的意思是你可以使用它，但不要把它当作权威。

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