Optg
abbr. operating 操作的，运转的，营业上的
🗣️ 情景例句
On a studect visa, full-time work is not permitted.
持学生签证的话，不允许做全职工作。
Fish begins to stink at the head.
上梁不正下梁歪。
Rice doesn't grow in cold climates.
寒冷的气候不适于水稻生长。