alkali|alkalis

这种碱性物质能中和酸性溶液。

The ___alkali can neutralize the acidic solution.

这种清洁剂含有强碱，可以轻松去除顽固污渍。

This cleaner contains strong ___alkalis that can easily remove tough stains.

这种清洁剂含有强碱，使用时要戴手套。

This cleaner contains strong ___alkali, so wear gloves when using it.