動詞 arch:

1. form an arch or curve
   同義詞：arch, curve, arc

形容詞 arched:

1. constructed with or in the form of an arch or arches
2. forming or resembling an arch
   同義詞：arced, arching, arciform, arcuate, bowed

1. The cat arched its back when it saw the dog.
   那貓看見狗時就拱起了背。
2. The cat arched its back in anger.
   那只貓氣得拱起了腰。
3. A triangular, usually ornamental architectural section, as one above an arched door or window.
   三角形飾物如拱門或窗戶上方的三角形裝飾性的建筑部分
4. The condition of having an arched surface.
   翹曲表面彎曲的這種狀況
5. An arched structure erected over the deck of a ship as protection from heavy seas.
   龜背甲板船的甲板上拱形的結(jié)構(gòu)，可保護(hù)船在狂暴的海上航行
6. Tall trees arched across the river.
   高大的樹木成拱形橫跨過那條河。

arched

adj.（形容詞）
Forming an arch or a curve like that of an arch.
拱形結(jié)構(gòu)的：形成拱或類似于拱的曲線
Provided, made, or covered with an arch.
提供、制作拱狀物或用拱狀物覆蓋的