Nsu
abbr. 网络服务单元（Network Service Unit）；供氮设备（Nitrogen Supply Unit）
🗣️ 情景例句
She doesn't have the phone number.
她不知道那儿的电话号码。
He that would eat the fruit must climb the tree.
不劳无获。
He was so angry as to be unable to speak.
他气的连话都说不出来了。