can·is·ter
noun/ˈkænɪstə(r)/
/ˈkænɪstər/
- a container with a lid (= cover) for holding tea, coffee, etc.
（装茶叶、咖啡等有盖的）小罐 - a strong metal container containing gas or a chemical substance, especially one that explodes or bursts (= breaks open) when it is fired from a gun or thrown
霰弹筒 - Police fired tear-gas canisters at the demonstrators.
警方向示威者发射催泪弹。
- Police fired tear-gas canisters at the demonstrators.
- a flat, round metal container used for storing film
（用以放置胶片的）扁平圆金属盒 - a film canister
胶片盒
- a film canister
Word Originlate 15th cent. (denoting a basket): from Latin canistrum, from Greek kanastron ‘wicker basket’, from kanna ‘cane, reed’ kannē, of Semitic origin.