Calkin
n. 马蹄铁底端的凹凸, 鞋底铁掌
🗣️ 情景例句
What am I supposed to do?
我该做什么？，
He has lived here for a year.
他在这里住了一年了。[表示持续到现在的行为]
Let me see your driving licence.
让我看一看你的驾驶执照。