中心

To absorb; to take in.

The height of an object or place above sea level.

A quality or feature that is typical of or belongs to something or someone.

Any living thing, or the study of living organisms. Basic term for IELTS biology-related reading passages.

Blurry; vague; indistinct.

To breathe; respiration.

To burn; combustion.

To calculate; to compute; to determine a value mathematically.

To calculate, estimate, or figure out something using data, logic, or mathematical methods. It implies a process of reasoning from known facts to unknown values.

To calibrate, adjust, or check for accuracy against a standard. It is used for instruments, data, or plans.