How do the leaves of a waterlily float?

荷花的叶子怎么在水上漂浮？

The world's biggest species of waterlily can have pads that grow to around 3m (10ft).

这世界上最小的睡莲的垫子能长到大约3米。

The experimentation of overwintering tropical waterlily tubers was carried out by different dormant phases of tropical waterlily tubers, different disinfection levels and different sand humidity.

通过对不同休眠状态的热带睡莲地下茎，在不同消毒处理和不同的藏沙湿度下进行了越冬沙藏试验。