1. peep into 窥视
He squatted down to peep into the basket.
他蹲下来向篮子里窥视了一下。
2. plenty of 足够的，很多的
A growing child needs plenty of sleep.
正发育的孩子必须睡眠充足.
3. a heap of 一堆
The building was reduced to a heap of rubble.
那建 物已成了一片瓦砾.
4. once or twice 偶尔；一两次
She looked back once or twice, half hoping that they would call after her.
她回头看了一两次，希望他们还会叫她回去。