A pocket-sized folder or case used to hold money and papers; a billfold.

皮夹子，钱包用来装钱和 纸张的口袋 大小的夹子或盒子；

youdao

At home you eat leftovers can be used in food preservation pocket, and then fruit-sealed folder folder, and you have to keep the health, Food preservation is one of the best ways;

您家里有吃不完的食物都可以用保鲜袋装好，再用水果型封口夹夹好，可保您饮食的卫生，也是保存食物的最佳方法之一；

youdao

Guests were given a pocket folder with key facts on the country and an invitation to "learn some Welsh".

BBC: St David's Day: what might have been for Danny Boyle