Europeans take melons for a preventive against seasickness.是什么意思？

Europeans take melons for a preventive against seasickness.

欧洲人吃瓜作为预防晕船的方法.

Europeans

n. 欧洲人( European的名词复数 )；

例句
If the Europeans did not reduce subsidies, a trade war would ensue...
如果欧洲人不减少补贴，便会发生贸易战。

take

vt. 拿，取，采取，接受（礼物等），耗费（时间等）；vi. 拿，获得；n. 镜头，看法，收入额，场景；

例句
I take care of them to the best of my abilities...
我尽我所能地照顾他们。

melons

n. 瓜，甜瓜( melon的名词复数 )；

例句
I could smell the honeyed ripeness of melons and peaches.
我能闻到瓜桃熟透了的香甜味道。

for

prep. 为，为了，倾向于，关于，当作；conj. 因为，由于；

例句
I've come looking for a bit of advice.
我特来讨教。

preventive

--

例句
Sulfur recycle catalyst activeness decline reason and its preventive measures are analyzed.
摘要分析了硫磺回收催化剂活性衰退的原因及防止措施.

against

prep. 反对，对…不利，紧靠，以防；

例句
His hand brushed against hers; it could have been either accidental or deliberate.
就在有意无意间，他的手轻轻拂过她的手。

seasickness

n. 晕船；

例句
He was very prone to seasickness and already felt queasy.
他快晕船了，已经感到恶心了。