如何使用 "dangerous" 造句

1. Why is property so dangerous ?
房地产为何如此危险?
2. The most dangerous place to fly remains africa .
最危险的飞行区域依旧是非洲。
3. That notion is as unscientific as suggesting that water or oxygen is dangerous .
这一观念如同说水或氧气是不安全的一样是不科学的。
4. He called the situation the most dangerous it has been in years .
他认为目前的局势是近几年来最危急的一次。
5. Finance is the machine that governs the economy , but it is unstable and dangerous .
金融是统治经济的机器,但这台机器既不稳定,也不安全。