Trav
abbr. 末端控制的变风量系统（Terminal Regulated Air Volume）
🗣️ 情景例句
If you feel tired at work, Just take a vacation.
如果你觉得工作太累了，不防去度假。
A journey of a thousand miles begains with a single step.
千里之行，始于足下。
We always assume that villagers in remote places are friendly and hospitable.
人们总是以为偏僻的地方的村民们热情好客。