Van Norden has put away his pipe and packed a wad of snuff on the underside of his lower lip.(范諾登已把煙斗收起來了，又在下唇內放了一小塊鼻煙。)

When an iceberg falls into the sea, a layer of salty seawater can freeze to the underside.(當冰山融入海水中時，海水可以底部形成一層冰層。如果這里生有大量海藻，便可以形成綠色條紋。)

The laser at photovoltaic cells mounted on the pelican's underside, charged the chopper's battery, keeping it aloft for 12 hours and 27 minutes.(激光瞄準安裝在鵜鶘下面的光伏電池，給直升機的電池充電，使它在空中飛行了12小時27分鐘。)

Carmen Elcira was very aware that he still had his hand around her wrist, his thumb firm against the underside, where her skin was smoothest.(卡門·艾爾茜拉清楚地感覺到他還握著自己的手腕，他的拇指緊緊貼著她手腕的內側，那里是她皮膚最光滑的地方。)

Through stubby spinneys of akeake I saw the bend of a river, as silvery as the underside of a fern.(透過矮小的雜樹林我看見河灣，像蕨類植物葉子背面一樣閃著銀光。)

To draw lines, the etch a Sketch's stylus scrapes aluminum powder from the underside of a glass screen.(在繪制線條的時候，需要用蝕刻素描筆刮去玻璃屏幕底部的鋁粉。)

Plants take in water through their roots, then release it through small pores on the underside of their leaves.(植物通過根吸收水分，然后經葉片背面的微小氣孔散發至空氣中。)

If it started to rain, she would share her umbrella with me, and I would get to see the underside of a toadstool for the very first time!(假若下起雨來，她會與我共撐一把傘，我就可以第一次看到傘菌的底部！)

Whereas rabbits' corneas can regenerate on the underside of the eye, human corneas regenerate on the surface.(這是因為兔子的角膜可以在眼睛的下方再生，而人類眼角膜只能在表面再生。)

Indian police watch as a security guard USES a mirror to check the underside of a car.(印度警察正在看保安用鏡子檢查一輛轎車的底部。)

The..young child, to whom the underside of a table may be a dark cave.