Stickleback
n. 刺鱼
📖 牛津释义
stickleback
n
small fish with sharp spikes on its back 刺鱼（背上有尖刺的小鱼）.
🗣️ 情景例句
Hello.
哈啰。
I won't check this baggage
这件行李我不托运。
What was the population of the less developed countries in 1950?
1950年不太发达国家的人口是多少？