彼は外食をせず、ほとんど毎日自炊だ。
Kare wa gaishoku o sezu, hotondo mainichi jisui da.
He doesn't eat out and cooks for himself almost every day.
自炊は手間がかかるが、食費を節約できる。
Jisui wa tema ga kakaru ga, shokuhi o setsuyaku dekiru.
Cooking for oneself takes effort but saves on food expenses.