在英语中，女生泳装通常被称为"women's swimsuit"或者"female swimsuit"。

"Swimsuit"这个词本身是由两个单词组成的合成词，"swim"和"suit"。"Swim"是一个动词，意思是"游泳"，"suit"是名词，意思是"一套衣服"或者"一套服装"。因此，"swimsuit"的意思就是"游泳用的衣服"。

"Women's"和"female"则是用来修饰"swimsuit"的形容词，用来表示这是女性专用的泳装。

下面是一些使用"women's swimsuit"或者"female swimsuit"的例句：

I need to buy a new women's swimsuit for my beach vacation.
She wore a black female swimsuit to the pool.
There is a wide selection of women's swimsuits in this store.
I'm looking for a modest female swimsuit with full coverage.

中文翻译如下：

我需要买一件新的女士泳装去海滨度假。
她穿着一件黑色的女式泳装去游泳池。
这家商店里有很多种女士泳装。
我在找一件有充足覆盖度的端庄女式泳装。