a round-up of stray cattle的用法和样例：
- A rounding up and driving of cattle to new pastures or to market.
- They try to round up a scattered herd of cattle.
- A rounding up and drivingof cattle to new pastures or to market.
- If we all stump up a pound we'll have enough for a round of drinks.
- They jazzed up after a round of beer.
- A large part of Africa is made up of thick forest.