Qdm
[计]= Quality assurance, Documentation and Maintenance,质量保证、文件编制和维护
🗣️ 情景例句
You know, man's best friend is his dog.
你知道的，类最好的朋友就是狗。
Often, when it rains, Marty feels blue.
一下雨，玛琪就会变得忧郁。
Don't crowd round him, said the gate keeper.
“不要围着他，”学校门卫说。