苦的英文怎么说sour

苦的英语说法为sour。

Sour的来源是来自古英语sūr，中世纪法语sour，最初来自拉丁语sūcus，意为"酸的"。

例句：

The milk had gone sour. (牛奶变苦了)
The lemon's sour taste makes it perfect for cooking. (柠檬的酸味使其非常适合做菜)
She had a sour expression on her face. (她脸上有一种不高兴的表情)