This pen is refillable, so you don't have to buy a new one every time it runs out of ink.

這支筆是可再填充的，所以每次墨水用完時，你都不必買一支新的。

We encourage customers to use refillable containers to reduce waste.

我們鼓勵顧客使用可再填充的容器以減少浪費。