I-d
[医][=intensity-duration curve]强度-期间曲线
🗣️ 情景例句
All right. That's it for today.
行了。今天就做这些。
The ancient Roman civilization was finally destroyed by the nomadic tribles.
古罗马终于被游牧民族灭亡了。
it would be up and down, to and for and from side to side.
呈现出上上下下、来来回回、左左右右3种性质的运动。