He has immerged the dress in the boiling dye for two hours .

他已把衣服浸入滚烫的染料中两个小时了。

The diver immerged in the icy sea for several minutes .

潜水员潜入冰冷的海里数分钟。

Is the true hydroponics by definition that parts of plant roots are immerged in a liquid medium ( nutrient solution ) , and another parts of roots are suspended over nutrient solution .

水培是指植物部分根系悬挂生长在营养液中，而另一部分根系是裸露在潮湿空气中的一类无土栽培方法。