一、up run
二、up-bound
參考例句：
It is not reasonably practicable to offer her the original job back.
讓她繼續做原來的工作在情理上行不通。
He skins his leg when walking along the thorny path.
他在長滿荊棘的小道上行走時擦破了腿上的皮。
"I was walking down the street, when I suddenly saw a car bump against a huge pine."
我在街上行走時，突然看見一輛轎車撞到一棵大松樹上。
While walking along a side street, Dick was mugged by two youths.
狄克在小街上行走時,遭到來自背後的`兩個青年的襲擊。
"In the slow-bicycle race, they wobbled along the track with identical do-or-die looks on their faces.
在自行車慢行競賽中,他們騎著車,搖搖晃晃地在跑道上行著,臉上都帶著一副相同的破釜沉舟的神情。
run是什麼意思：
n. 奔跑，跑步；旅行；趨勢
v. 跑步，奔跑；逃跑；參賽；行駛；運轉；（使）流動；管理
run the rapids.
衝過急流
Run (or Hold) with the hare and hunt (or run) with the hounds
兩面討好
He runs as quick as a deer.
他跑得跟鹿一樣快。
He runs as fast as Paul.
他跑得和保羅一樣快。
bound是什麼意思：
v. 限制，束縛；（使）彈回，彈起，跳躍
n. 躍起；跳躍；界限，限制，範圍
adj. 裝訂的，有封面的；結合的；用帶子綁住的；有義務的；受約束的
Where are you bound for?
君將何之？
The persons bound by such a contract.
合夥人受此種契約限制的人
Keep it within bounds.
請把它保持在限制範圍內。
You must bound your affection.
你必須束縛你的感情。
The book is bound in calf.
這本書用小牛皮做封面。
