The idea is that every odor molecule that enters our nose has a specific shape that fits a specific receptor-like a key fits a lock-allowing us to detect, say, the acrid aroma of burnt coffee.

这个想法是，每一个进入我们的鼻子的气味分子都有一个特定的形状，相互吻合的特定受体——就像锁和钥匙一样——使我们能够感知，例如感知焦咖啡的刺鼻气味。

youdao

When the rays hit the fossil, the signal that bounces back depends on the shape and size of each molecule, and how it is being subtly influenced by the chemicals surrounding it.

当射线轰击化石时，反弹回的信号的强度取决于每一个分子的形状和大小，以及它所处的化学环境造成的细微影响。

youdao

The shape of a water molecule is such that each H2O molecule is surrounded by four neighbours arranged in the shape of a triangular pyramid - better known as a tetrahedron.

一个水分子的形状是这样的：相邻地四个水分子组成一个金字塔形的四面体。

youdao

Until Turin came along, most people thought scent came from a molecule's shape.

FORBES: The scent of money

He remembered an earlier article he'd read about a radical--though discredited--theory: that smell came not from a molecule's shape, but from its vibration.

FORBES: The scent of money

An established method that of taking images of the electron densities of the relevant atoms in order to work out the shape of a molecule does not offer any clues as to which model is right.

ECONOMIST: Synthetic biology: Expanded vocabulary | The