The birds have a distinctive blue band round their eyes.

【band】这种鸟的眼圈是蓝色的，很特别。

She plays the saxophone with jazz and blues bands, but she began her career as a singer in Mexico.

她在爵士乐和蓝调乐队中演奏萨克斯管， 但她的歌手生涯始于墨西哥。

On the western side of the mountains is a deep trench, which you can see as the dark blue band on this colorized elevation map.

山脉的西侧有一条深沟，您可以在这张彩色高程地图上将其视为深蓝色带。