Reactivity
n. 反应, 反动, 反应性, 活动性, 反应率\\n[医] 反应性
🗣️ 情景例句
Sure, I'll let you take my daughter you, but make sure she is back by 10.
可以，你可以带我女儿出去，但你要保证十点前把她带回来。
After forty years teaching English he thinks it's time to call it a day.
他教英语四十年，认为该退休了。
Predicting the future is notoriously difficult.
众所周知，预测未来是非常困难的。