Neiss
[醫(yī)][=National Electronic Injury Surveillance System]全國電子危害監(jiān)督系統(tǒng)
??? 情景例句
I'd like to buy some stamps for this letter.
我想買這封信的郵票。
I turned off when they started talking about computers.
當他們談論計算機時，我失去了興趣。
At the moment, they are playing in the garden.
此刻，他們正在花園里玩。