Trekking
v. 艱苦跋涉, 徒步旅行( trek的現在分詞 ); （尤指在山中）遠足, 徒步旅行, 游山玩水
??? 情景例句
I'd appreciate that.
謝謝你。
The purpose of this meeting is to discuss possible solutions for the pending issues.
本次會議的目的就是要討論對懸而未解的問題的可能解決辦法。
Excuse me. Where's the nearest post office, please?
請問，最近的郵局在哪兒？