the quality of being light and small enough to be easily carried or moved

The advantage of the smaller model is its greater portability. 较小型号的优势在于其更大的便携性。

Campers like food pouches for their portability and long shelf lives. 露营者喜欢食品袋的便携性和较长的保质期。

the quality of being able to be taken with you if you move to a different place or job

There is a need for pension portability, to enable workers to take whatever pension credits they earn from job to job. 养老金的可转移性是很有必要的，这样工人在换工作的时候能够带走他们已经获得的养老金积分。

Health-savings accounts have been touted for their portability from job to job. 健康储蓄账户的一大卖点是可以随工作转移。