zhè / jiàn / bái / chèn / shān / shàng / yǒu / yì / xiǎo / kuài / wū / jì / zěn / me / yě / xǐ / bù / diào

这件白衬衫上有一小块污迹，怎么也洗不掉。

There is a small stain on this white shirt that cannot be washed out.