Especially the third one describes the pinhole image formation experiment and analogies rectilinear propagation with the archery flight.

特别是其中的第三条描述了针孔成像实验，并用射箭的飞行来比喻光的直线传播。

youdao

By 1350 one-third of them, especially in the swollen cities, would be dead.

到1350年时，这里三分之一的人——尤其是在大城市的，将会死去。

youdao

One way of avoiding emotion is to talk in the third person, taking yourself and especially them out of the picture. Thus, rather than say.

采用第三人称是一个避免提问情绪化的方法，把自己，特别是被问者从问题中剔除。

youdao

One-third of its sales come from bromine-based products, especially the flame retardants that keep DVD players from catching fire.

FORBES: Paddling Upstream

The third floor's retractable roof is great on warmer days, especially with a plate of freshly prepared sushi and one of 27 bottles of wine on offer.

BBC: Business trip: Boston