Bumping
[化] 暴沸; 迸沸\\n[医] ч沸
✅ 同义词
🗣️ 情景例句
Do you have any objections to my paying in cash?
你反对我付现金吗？
To blow smoke rings
喷出烟圈
and a period (which is the time it takes a wave crest to travel one wave length).
和周期（浪峰走过一个波长所需的时间）。