1. The boy pings a knife against a glass. 小男孩用刀碰着玻璃杯发出丁当声。
2. Agreed. If psychologists can teach pigeons to play ping-pong. 我同意，心理学家都可以教会鸽子打乒乓球。
3. Wang Ping cut off the electricity quickly, preventing an accident. 王平立即切断电源，避免了一些事故。（表结果）
英英解释
n.
1. a river in western Thailand; a major tributary of the Chao Phraya
2. a sharp high-pitched resonant sound (as of a sonar echo or a bullet striking metal) v.
1. hit with a pinging noise
2. sound like a car engine that is firing too early
3. make a short high-pitched sound
4. contact, usually in order to remind of something
5. send a message from one computer to another to check whether it is reachable and active
