I'll treat myself to a sunbath.

我要好好地享受一次日光浴.

《现代英汉综合大词典》

The little boy was having the sunbath on the beach birthday suit.

这个小男孩赤条条地躺在沙滩上晒大阳.

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By the way , we also took a sunbath on the sand.

后来还有在沙滩享受日光浴,整个就是悠闲阿.

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The beach there is a resort for sunbath.

那里的海滩是日光浴胜地.

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