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canned food; tinned food
confining someone (e.g. so they can concentrate on work)
being stuck in a confined space
非常食として缶詰をいくつか備えておくべきだ。
You should keep some canned food as emergency provisions.
缶詰は長期間保存できるので便利だと思うよ。
Canned food is convenient because it can be stored for a long time.
キャンプに缶詰を持っていって食べることにした。
I decided to bring canned food to the camp and eat it.