跐

wǒ jiǎo xia yī cī diē rù le shuǐ zhōng

我脚下一跐跌入了水中。

With a slip I fell into the water.

tā jiǎo yī cī shuāi dǎo le

她脚一跐摔倒了。

She slipped and fell with a thud.