zhè / diǎn / xiǎo / shì / bù / zú / guà / chǐ / nǐ / bú / yòng / tè / yì / xiàng / wǒ / dào / xiè

这点小事不足挂齿，你不用特意向我道谢。

This small favor is not worth mentioning, so you do not need to thank me specially.