您要查找的是不是：
- This tire is going down. 这个轮胎漏气了。
- This tire is flat; you didn't pump enough air in. 这个轮胎没气了;你并没打足气。
- This tire is damaged. Do you have a spare? 这个轮胎坏了,你有备胎吗?
- He is going down south this summer. 今年夏天他要去南方。
- This tyre is going down; I'll pump it up. 这个轮胎越来越瘪了，我来给它打气。
- This tire is flat; you do not pump enough air in. 这个轮胎没气了；你并没打足气。
- This tire is flat. You do not pump enough air into it. 这个轮胎没气了，你并没打足气。
- At sunset, the sun looks as if it is going down. 日落时，太阳看起来好像在降落。
- She is going down to see what has happened outside. 她要下去看看外面发生了什么事。
- This tire is too old I need to change it for a new one. 这个轮胎太旧了，我要换个新的。
- At sunset,the sun looks as if it is going down. 日落时，太阳看起来好像在降落。
- The education system is going down the tubes. 这种教育体系就要垮台了。
- The system is going down in ten minutes. 这个系统十分钟后要暂停运行。
- Something strange is going down around here. 这里正在发生一件不可思议的事情。
- Above him, the giant is going down the beanstalk. 巨人正在他上面，也沿豆茎往下爬。
- The glass is going down,so we must expect a change in the weather. 气压计的水银柱在下降，看来天气一定要发生变化了。
- The price of petrol is going down/Petrol is going down (in price). 汽油价正在下跌.
- When a man is going down, everyone will give him a push. 墙倒众人推。
- The glass is going down, so we must expect a change in the weather. 气压计的水银柱在下降，看来天气一定要发生变化了。
- The economy is going down; it's a bad time to buy an apartment. 经济不景气，所以现在不适合买房。
