Trac
abbr. 牵引车辆（Tractor）；期末租金调整条款租赁协议（Terminal Rental Adjustment Clause）
🗣️ 情景例句
Please call me Mary. That's my first name.
请叫我玛丽吧，那是我的名字。
When one is about to act, one must reason first.
凡事要先思而后行。
Yet a great many processes depending on such research are sought for with complete secrecy until the stage at which patents can be taken out.
然而，依赖这种研究的很多工艺程序是在完全保密的情况下进行的，直到可以取得专利权的阶段为止。