Hydra
[ ['haidr?] ]
出國 Abroad
n. 水螅, 九頭蛇, 難以根除之禍害
?? 牛津釋義
hydra
n
1 (in Greek mythology) snake-like monster with many heads that grew again if they were cut off （希臘神話中的）蛇怪（長著許多頭, 斬去後能重新長出）.
2 (fig 比喻) thing that is hard to get rid of; recurring problem 難以除掉的事物; 一再出現的問題.
??? 情景例句
We once found a cat.
我們有一次找到一只貓，
Would you please leave the door unlocked for me?
可以請你為我把門鎖打開嗎？
We've got to do something about the neighbor's dog!
我們得對鄰居的狗采取點行動了！