可以将无患子属植物打成泡沫状。
无论天气怎样，你都有备无患。
班前检查一分钟，有防无患莫放松。
有备无患，快收藏这个小东东吧。
问题不一定会发生，但有备无患并无害处。
问题不一定会发生，但有备无患并无害处。
The problem may not arise, but there's no harm in keeping our powder dry.
问题不一定会发生，但有备无患并无害处。
The problem may not arise, but there is no harm in keeping our powder dry.
妮可︰我认为要。他可能伤得很重。有备无患，对吧？
Nicole: I think so. He could be seriously hurt. Better safe than sorry, right?
印度是一些传染病易发地区，临行前，应携带防疫证书，有备无患。
India also is the area where is easy to have the infectious disease.
无保护的皮肤在太阳暴晒下有患皮肤癌的危险。
Exposure of unprotected skin to the sun carries the risk of developing skin cancer.
无保护的皮肤在太阳暴晒下有患皮肤癌的危险。
Exposure of unprotected skin to the sun carries the risk of developing skin cancer.
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