Matlab
abbr. 矩阵实验室（matrix laboratory）
🗣️ 情景例句
I have been a secretary in an insurance company.
我一直在一家保险公司担任秘书工作。
Doctors and lawyers are professional people.
医生和律师是专业人员。
Do you know what they are?
你知道他们是干什么的吗？