Nsi
[医][=no signs of infection]无传染病征兆
🗣️ 情景例句
Are you sure you are dialing the right number?
你确定你打的号码是对的吗？
Never trust another what you should do yourself.
自己应该做的事，决不要委托别人做。
Are you free this Saturday?
你这个星期六有空吗？