Arousals
(arousal 的复数) n. 奋发, 激励
🗣️ 情景例句
Are you involved in any extra-curricular activities on campus?
你在学校参加过任何课外活动吗？
We'll exchange presents.
我们要交换礼物。
The first records the arrival of longitudinal vibrations.
首先记录下的是纵向波的到达；