Translation of "Lunches" in Japanese

We can buy hot lunches.

暖かい弁当が買える。

Let's have one of those boxed lunches they sell at train stations.

お昼は駅弁にしよう。

There's no point starting a shop selling take-away lunches; there are already plenty.

弁当屋さんを始めたってむだだよ。ざらにあるからね。

There were some men eating their lunches under the trees in front of the library.

図書館の前の木の下で、お昼ごはんを食べている男性が何人かいました。