1.The former head of Microsoft, Bill Gates, has warned that the world could be in great danger from bio-terrorism.
in danger有…的危險
He was in danger of making a real cock-up of this.
他很有可能會把這事弄得一團糟 。
2.He expressed his surprise that very few leaders were even aware of it.
aware of意識到,知道
Sometimes we are not consciously aware of these feelings.
有時候我們沒有意識到這些情感 。