trusty

He set out on the long journey across the mountains with nothing but his trusty dog and a map.

(Chinese) 他带着他那忠诚可靠的狗和一份地图，踏上了跨越群山的漫长旅程。

The mechanic has used the same pair of trusty wrenches for over twenty years without them breaking.

(Chinese) 这位机械师使用同一对可靠的扳手二十多年了，从来没坏过。