to knock

• 发出撞击声

to knock的用法和样例：

例句

1. The enemy charged up the mountain, attempting to knock out our forces.
   敌人向山上冲锋，企图把我们的兵力摧毁掉。
2. Even though they weren't expecting us, they managed to knock up a marvellous meal.
   他们虽然没想到我们要来，但还是设法匆匆做好一顿丰盛的饭。
3. I was able to knock their price down to $1.
   我把价格压到一美元。
4. I managed to knock his price/him down (from 500 to 450).
   我设法压了他的价(从500英镑减到450英镑).