Tortoising
(tortoise 的現在分詞) n. 龜, 行動遲緩的人
??? 情景例句
This is Susan with Jiaotong University student. May I have your name, sir?
我是交通大學的在校生蘇珊，請問您貴姓？
One thorn of experience is worth a whole wilderness of warning.
一次痛苦的經驗抵得上千百次的告誡。
When did you come to China?
你什么時候來到中國？