Let's forget what happened.
すんだことは忘れよう
Let's get back to the point.
本題に戻ろう
Let's get down to business [work] right away.
すぐ仕事にかかろう
Let's get one thing straight.
一つはっきりさせておこう
Let's go down the pub.
パブに行こう
Let's go out for lunch─my treat.
お昼に行こう，おごるよ
Let's go shopping, but first I want to have some coffee.
買い物に行こう．でもその前にコーヒーが飲みたいな（◆この場合のfirstはbefore we go shoppingの意）
Let's go shopping.
買い物に行こう
Let's go to the cinema tonight.
今晩映画に行こう
Let's go to the heart of the problem.
問題の核心に入ろう
