外卖行业用英语怎么说

"外卖行业" 英文表达是 "take-out/delivery food industry"。

"take-out" 是指顾客在餐厅或其他餐饮场所外带食物的行为。"delivery" 指的是送餐上门服务。由于这两种行为都涉及到了餐饮外带，因此将它们统称为 "take-out/delivery food industry"。

例句：

The take-out food industry has seen a major uptick in business during the pandemic. (外卖行业在大流行期间生意大增)
Many restaurants are now offering delivery services in addition to take-out options. (许多餐馆现在除了外卖选项还提供送餐上门服务)
The delivery food industry is now worth billions of dollars. (外卖行业现在价值数十亿美元)