Topochemotaxis
趋化源性
🗣️ 情景例句
Mr. Carlson is busy at the moment. May I help you?
Carlson先生现在正忙着呢。我可以为你效劳吗？
Where were you yesterday afternoon?
你昨天下午在哪儿？
Is that you, John?
是你吗，约翰？