Nitrogenization
[医] 氮化[作用], 充氮[作用]
🗣️ 情景例句
These items shouldn't be difficult to come by
这些东西应该是不难弄到的，
She had to keep out of sight when her husband was holding a meet.
她在丈夫举行会议时只得避不露面。
It's about20,000 kilometres.
大约有20，000公里。