I-d
[医][=intensity-duration curve]强度-期间曲线
🗣️ 情景例句
I feel bad
我觉得很不安
Could you tell me where I can find these books?
您能告诉我在哪儿能找到这些书吗？
Don't you usually come to school by bike?
你不是常骑自行车到学校吗？