Preventer
n. 妨碍者, 妨碍物, 预防者
✅ 同义词
🏥 医学释义
防护设备，防护装置
🗣️ 情景例句
Yes, it is. Come up.
是的 是我。请上来
A guilty conscience needs no accuser.
贼胆心虚。
'May I have two tickets please?' I asked.
“我可以买两张票吗？”