ADJ [ADJ n] （灯泡、电池等）寿命长的；（果汁、牛奶等）保质期长的 Long-life light bulbs and batteries are manufactured so that they last longer than ordinary ones. Long-life fruit juice and milk have been specially treated so that they last a long time. （灯泡、电池等）寿命长的；（果汁、牛奶等）保质期长的