Reactivity
n. 反应, 反动, 反应性, 活动性, 反应率\\n[医] 反应性
🗣️ 情景例句
Mom is now on television
妈妈现在出现在电视上
Do i need a reservation to go by ship?
我坐船去需要预订吗？
We visited the Great Wall. We went there by bus. We all took some food and drink with us.
我们参观了长城。我们是坐车去的。我们每人都自备一些食物和饮料。