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(please) try to
(please) look
seeing; looking; watching
一度やってごらん、意外と簡単だよ。
Give it a try — it's easier than you'd think.
この写真をごらん、去年の旅行のものだ。
Take a look at this photo — it's from last year's trip.
自分の目で確かめてごらんなさい。
Go and see for yourself.