In the streets of the city, he saw not a single cat or dog.

在城市的各条街道上，他看不到一只猫或一只狗。

youdao

When moving at a fast trot, a properly built dog single tracks.

当他快速奔跑时，结构正确的狗会趋向于单一轨迹。

youdao

When moving at a fast trot, a properly built dog single tracks.

当他快速奔跑时，结构正确的狗会趋向于单一轨迹。

youdao