双筒望远镜 
field-glasses
binoculars
binocular telescope
binocular
- 他取出双筒望远镜并调整了焦距。
He took out the binoculars and adjusted the focus. - 他把双筒望远镜对准远处的景物。
He trained his binoculars on the distant figures. - 这位军官用双筒望远镜了望战场。
The officer scanned the battlefield with a binocular.