When pouring molten glass onto the molten tin, the underside of the glass would also be perfectly flat.

当把玻璃液倒在锡液上时，玻璃的底面也会变得完全平整。

youdao

Through stubby spinneys of akeake, I saw the bend of a river, as silvery as the underside of a fern.

透过矮壮的新西兰坡柳小树林我看到了河湾，像蕨类植物叶子背面一样闪着银光。

youdao

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!

假若下起雨来，她会与我共撑一把伞，我就可以第一次看到伞菌的底部！

youdao

The body is light to reddish brown, but lighter on its underside.

VOA: special.2010.06.22

These then transport the water from the top to the underside of the glacier.

CNN: Rubber ducks aid NASA study

Dons sub Josh Magennis also had a header strike the underside of the bar.

BBC: Sport - Football - Aberdeen 0-1 Hibernian

There is a Louboutin manicure, in which the underside of the nail is painted with scarlet polish.

NEWYORKER: Sole Mate