1.Humans represent a tiny fraction of all life on Earth
fraction 部分
Their economy is still a fraction of ours.
他們的經(jīng)濟仍然是我們的一部分 。
2.Today, farmed poultry (mostly chickens) makes up 70% of all birds on the planet, with just 30% of birds being wild.
make up 組成;占
The committee is made up of six women.
委員會由六位婦女組成 。