Trekking
v. 艰苦跋涉, 徒步旅行( trek的现在分词 ); （尤指在山中）远足, 徒步旅行, 游山玩水
🗣️ 情景例句
Oh!
噢！
He that knows nothing,doubts nothing.
无知即无疑。
I apologize for being so angry with you.
我为跟你发火向你道歉。