"They swim well" 表示他们游泳能力很好。这是一个常见的表达方式，用来形容某人的游泳能力。
一些其他表达方式包括：
They are good swimmers.
They are strong swimmers.
They have a lot of skill in the water.
下面是一些例句和翻译：
Example: "I can't bepeve how well they swim. They must have been practicing a lot."
Translation: "我真的不敢相信他们游得这么好。他们一定练了很多。"
Example: "My sister is a really good swimmer. She's been on the swim team since she was in high school."
Translation: "我的妹妹是一个很棒的游泳选手。自从她上高中以来就加入了游泳队。"
Example: "I'm not a strong swimmer, but I enjoy going to the pool and practicing."
Translation: "我不是很会游泳，但我喜欢去游泳池练习。"
一些其他表达方式包括：
They are good swimmers.
They are strong swimmers.
They have a lot of skill in the water.
下面是一些例句和翻译：
Example: "I can't bepeve how well they swim. They must have been practicing a lot."
Translation: "我真的不敢相信他们游得这么好。他们一定练了很多。"
Example: "My sister is a really good swimmer. She's been on the swim team since she was in high school."
Translation: "我的妹妹是一个很棒的游泳选手。自从她上高中以来就加入了游泳队。"
Example: "I'm not a strong swimmer, but I enjoy going to the pool and practicing."
Translation: "我不是很会游泳，但我喜欢去游泳池练习。"