Of a leaf shape; round with the stem attached near the center of the lower surface rather than the margin as a nasturtium leaf e. g...

一种叶子形状；圆形，其茎依附在较低表面的中心附近而非边缘，比如旱金莲花叶等等。

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Water surges from the cells on the inside of the leaf to those on the outside, causing the leaf to rapidly flip in shape from convex to concave, like a soft contact lens.

水从叶子内部的细胞涌向外面的细胞，导致叶子迅速地从凸向凹翻转，就像一片柔软的隐形眼镜。

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Toyota executives wear green lapel pins on their suits and have plastered Toyota factories with images of a green leaf in the shape of a car.

FORBES: Green, All Right

The cost drops 30% on a Mediterranean hand-painted dinner plate if you get a painter to use a sponge cut in the shape of a leaf instead of laboring over brush strokes.

FORBES: The logistics of a dinner plate