Switchbacking
(switchback 的现在分词) n. Z形爬坡路线
🗣️ 情景例句
Oh! Hi, Grandpa. Yes, of course, I am, but my mind isn't.
噢， 嗨， 爷爷。是的， 当然， 我准备好了， 但是有点心事。
What time's the next train to Washington?
下一趟去华盛顿的车几点开？
The examiner must have been pleased with my performance, for he smiled and said.'Just one more thing, Mr.Eames.
“埃姆斯先生，只剩1项了。