1.The former head of Microsoft, Bill Gates, has warned that the world could be in great danger from bio-terrorism.
in danger有…的危险
He was in danger of making a real cock-up of this.
他很有可能会把这事弄得一团糟 。
2.He expressed his surprise that very few leaders were even aware of it.
aware of意识到,知道
Sometimes we are not consciously aware of these feelings.
有时候我们没有意识到这些情感 。