Etymologize
v. 探溯词源, 指示词源
🗣️ 情景例句
Six months ago.
六个月以前。
What's your plan?
你的计划是什么？
'He had travelled only seven miles across the Channel when his engine failed and he was forced to land on sea.
但他只在海峡上空飞行7英里，引擎就发生了故障，他只好降落在海面上。