Propyne
n. [化]丙炔
🗣️ 情景例句
Do I get a better price if I buy in bulk?
我多买能便宜一点吗？
Good to begin well, better to end well.
善始好，善终更好。
Intermittent tap-water supplies should be regarded as particularly suspect.
断断续续的水管应该被视为是非常可疑的。