He was very prone to seasickness and already felt queasy.

他很容易晕船，此时已经感到恶心了。

《柯林斯英汉双解大词典》

It delves into everything from seasickness, jet lag and the hazards of camels to malaria and plague.

它探究了从晕船、时差和骆驼的危害到疟疾和瘟疫的一切。

youdao

Europeans take melons for a preventive against seasickness.

欧洲人吃瓜作为预防晕船的方法。

《新英汉大辞典》

We had to take one scientist back with terrible seasickness, which left him dehydrated and needing hospital treatment.

CNN: Could volcanic eruptions signal boom time for ocean life?

Boats are not for people who are prone to seasickness or fear spiders.

FORBES: Playing the Float

In particularly rough seas during the cruise, Michele-Marie says that everyone was falling over and suffering from seasickness apart from her.

BBC: Holiday cruise left woman feeling permanently seasick