Flushometer
冲洗阀
🗣️ 情景例句
we don't have to.
我们不必勉强。
If one sheep leap o'er the dyke,all the rest will follow.
一羊跳过沟，众羊跟着跳。
But some time later it began to rain.
但过了一阵子。天下起雨来，