1.The security industry is also keeping a close watch.
keep a close watch密切注視
Keep a close watch on the enemy's movements.
密切注意敵人動向 。
2.Agabi said computers have used silicon for decades, but it is not powerful enough to deal with the maths needed to recognize smells.
deal with應付;對待
Overcrowding has taxed the city's ability to deal with waste.
人口過多使得城市的垃圾處理能力達到了極限 。