Nitridation
[化] 渗氮\\n[医] 氮化[作用]
🗣️ 情景例句
Amtrak is happy to announce our arrival in New York City.
我们很高兴报告诸位 Amtrak火车就要到达纽约了。
After dinner sit awhile,after supper walk a mile.
正餐以后，休息片刻；晚餐以后，步行一哩。
It's a good opportunity!
好机会！