VERB
打開（箱、盒等）；（從箱、盒等中）取出
When you unpack a suitcase, box, or similar container, or you unpack the things inside it, you take the things out of the container.
例句
He unpacked his bag...
他打開了包。
Our guide unpacked a picnic of ham sandwiches and offered us tea.
我們的導游打開裝著火腿三明治的野餐盒，并給我們倒了些茶水。