Flushometer
冲洗阀
🗣️ 情景例句
Like setting up a regular weekly reading program.
譬如说开办一项每周一次的定期阅读计划。
A true friend is known in the day of adversity.
疾风知劲草，患难知友情。
A pilot noticed a balloon which seemed to be making for a Royal Air Force Station nearby.
一个飞行员发现了一只气球，它像是正飞往附近的一个皇家空军基地。