Bath
an act of washing your whole body by sitting or lying in water 沐浴，洗澡 [名词]
1. He takes a cold bath every morning.
他每天早晨都洗冷水澡。
2. After a bath, he took a walk in the yard.
沐浴后，他在院子里散步。
3. I think Ill have a bath and go to bed.
我想洗个澡，然后睡觉。
to have a bath or to give a bath to somebody 洗澡；给...洗澡 [动词] [主要用于英国英语中]
1. Its your turn to bath the baby.
轮到你给婴儿洗澡了。
2. I bath every night.
我每晚都洗澡。
Bathe
to wash something with water, especially a part of your body 用水清洗，冲洗 [及物动词]
1. I want to bathe my face and hands.
我要洗洗脸和手。
2. You must bathe that wound before you bind it up.
包扎伤口之前必须先清洗。
to have a bath or to give a bath to somebody 洗澡；给...洗澡 [动词] [主要用于美国英语中]
1. I bathe every day.
我每天都洗澡。
2. Have you bathed the baby yet?
你给婴儿洗澡了吗？
【注意】
bath作名词时，在英国英语和美国英语中都可以用来表示洗澡，沐浴，只是搭配有所不同。
I think Ill have a bath and go to bed. （英）
I think Ill take a bath and go to bed. （美）
在英国英语中，常用bath作动词表示洗澡，而在美国英语中，常用bathe作动词表示洗澡。
I always bath before I go to bed. （英）
I always bathe before I go to bed. （美）