many a là gì how many teeth does a human have Many a là cách nói đặc biệt. Nó được dùng với một danh từ số ít và có nghĩa là “nhiều”. Nó chỉ dùng trong văn viết và mang vẻ trịnh trọng. Many a person nowadays buys goods on the Internet. = Nhiều người ngày nay mua hàng hóa trên Internet
many people are trying to adopt a 20. Many people are trying to adopt a healthy lifestyle these days. 21. Stay healthy by eating well and exercising regularly. 22. Just taking vitamin tablets will not turn an unhealthy diet into a good one
there are many theories of aging There are many theories that attempt to explain how we age, however, researchers still do not fully understand what factors contribute to the human lifespan Jin, 2010. Research on aging is constantly evolving and includes a variety of studies involving genetics, biochemistry, animal models, and human longitudinal studies NIA, 2011a
