Pressure retaining valve
[化] 保压阀
🧩 词语组成解析
n. 保留, 保持, 维持防护\\nv. 保持( retain的现在分词 ); 拦住; 保存; 止住
valve
[vælv]
n. 阀;真空管;（管乐器的）活栓;（心脏的）瓣膜;
vt. 装阀于;以活门调节;
🗣️ 情景例句
African athletes are good at track and field events.
非洲选手擅长田径项目。
There's no such thing as a free lunch.
天下没有白吃的午餐。
His wife was sitting beside him holding a large cake.
司机妻子正坐在他身边，手里托着块大蛋糕。