Rarifying
vt. 使成精细；使变稀薄\\nvi. 变稀薄；纯化
🗣️ 情景例句
At the Stewart family home on Linden Street yesterday,
昨天在Linden街Stewart 的家中，
You're very kind to take the trouble to help me.
谢谢你不怕麻烦帮助我。
Often the little words have meanings of their own.
这些小词常常都有自己本身的意思。