They were always supportive of each other...是什么意思？

They were always supportive of each other...

他们一直互相帮助。

they

pron. 他/她/它们，人们，大家，政府，当局，她们；

例句
The storms had abated by the time they rounded Cape Horn.
他们绕过合恩角时，暴风雨已经减弱。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

always

adv. 总是，老是，永远，始终，常常，不断地；

例句
Some cities are always going to be more advantaged.
一些城市总会有一些得天独厚的优势。

supportive

adj. 支持的，拥护的，赞助的；

例句
A supportive house for eight to ten older people, each with his or her own room, provides privacy and a sense of community...
一幢扶助性住宅可供8至10位老人居住，每个人都有自己单独的房间，在这里，他们既能独处，又有社区归属感。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

each

adj. 每，各自的；pron. 每个，各自；

例句
They were completely absorbed in each other...
两人彼此倾心。

other

adj. 别的，其他的，（两个中的）另一个，其余的；pron. 其他的，（指两个人或事物中的第二个）那个，（指一组中其余的人或事物）其余的，（指与说话人所在位置等相反的方向或地点）另一边；n. [the other]对立面；对立的事物；

例句
He was ably assisted by a number of other members.
他得到其他一些成员的鼎力相助。