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1·Arching 275 feet and across 290 feet, Rainbow Bridge in the Utah desert has been a source of inspiration and wonderment for millennia.

拱高275英尺，跨度290英尺，犹他州沙漠里的彩虹桥一直是几千年来的灵感和奇迹的来源。

2·And avoid arching your back.

并且避免弓背。

3·“What is that?” asked the midwife, arching her eyebrow.

“是什么？” 老接生婆问，拱起眉毛。

4·The moment I saw the arching tree trunks, I took this picture.

此时我看见了成拱形的树干，我拍了这张相片。

5·She began to moan and tried to pull out herself by arching her body.

她开始发出“嗯嗯”的声音，身体使劲往上拱。

6·No-flow from a silo is typically due to either arching (bridging) or rat-holing.

料仓中出现的不流动一般是由于架桥或出现空洞（鼠洞）。

7·Gazelles and impalas bound effortlessly across the plains in great arching leaps.

瞪羚和黑斑羚毫不费力地在草原上作弧线跳跃。

8·Always keep your neck in alignment with the rest of your spine when arching backward.

始终与你的脊椎休息时，你的脖子上拱落后一致。

9·The soil arching effect between the piles is discussed from a theoretical perspective.

从理论方面讨论了桩间土体成拱机理和形成条件。

10·She stepped back and made a face in the mirror, sucking in her cheeks and arching her eyebrows.

她退后一步，朝着镜子做鬼脸，唆进腮帮子，把眉毛拱起来。

(1)arch bridge拱形桥

(1)arch dam拱坝，拱形坝

(1)aortic arch主动脉弓；织脉弓

(1)arch rib拱肋

(1)stone arch石拱

(1)vertebral arch椎弓；椎体