Talweg
深泓线, 最深谷底线
🗣️ 情景例句
What's your problem, Mike?
你现在问题在哪 ，Mike？
Whom will you play with?
你将和谁一起玩？
Not far. My house is about twenty minutes by bike.
离的不远，骑自行车大约20分钟的路程。