The cafeteria is serving ham and cheese sandwiches. 自助食堂提供火腿和奶酪三明治。
Just as the bell rang, he heard a loud popping sound coming from the cafeteria, like an empty milk carton being crushed underfoot. 上課鈴響了,就在這時(shí),他聽(tīng)到從自助食堂那邊傳來(lái)砰的一聲爆炸響,就像有人踩爆一個(gè)空牛奶紙盒。