Zhè / sōu / fān / chuán / nì / fēng / háng / xíng / sù / dù / bǐ / píng / shí / màn / le / hěn / duō

这艘帆船逆风航行，速度比平时慢了很多。

This sailboat is sailing against the wind, so it is much slower than usual.