あの子のランドセル、ちょっと大きいみたいね。
It seems his school bag is a little too big for him.

 サイズは一つしかなかったからなあ。あの子、早く大きくなるといいな。
There was only one size. I hope he grows quickly.

 あらあ! ランドセルをしょうと、7歳児に見えるわねえ!
Oh! You do look like a seven year old when you carry a school bag!

 うちのトミーはもうランドセルを使ってないのよ!
(Our) Tommy isn't using a school bag anymore!

 ジムも使いたくないって言うんだけど、使わせてるのよ。ほら、ランドセル高かったでしょ。
Jim says he doesn't want to use his school bag either, but I make him use it. It was so expensive, you know.

 うん。でも全然、実用的じゃないのよね。大き過ぎて重いだけ。
Yeah. But it's not practical at all. It's bulky and it's just heavy.

 ほんと。洗えないから本当にイヤ。あの子、2年生の時ランドセルに牛乳をこぼしたことがあってね。かなり臭くなったけど、皮でできてるから、洗えなかったのよね。
Right. It can't be washed so I really hate it. He once spilled milk on his school bag when he was in (the) second grade. It smelled really bad but I couldn't wash it because it's made of leather.

子供が玄関にランドセル(かばん)を置きっ放しにした時

 ここに、^ランドセル[かばん]を置きっ放しにしないの!
Don't leave your school bag here!