我在池塘边看到一只黑羽毛、红嘴的水鸟，那是一只黑水鸡。

I saw a black-feathered waterbird with a red bill by the pond - it was a ___moorhen.

她在舞池里笨拙地移动，像只落水的秧鸡。

She moved clumsily on the dance floor, flailing like a ___moorhen in water.