Optokinesis
[生]趋光性
🗣️ 情景例句
Is there a limit to how many I can purchase at this price?
我买这种东西在数量上有什么限制吗？
What is your hurry?
什么事让您这么着急呢？
Excuse me. Which is the way to East Park, please?
请问，去东方公园走哪条路？