改良

To try or attempt to do something. It often implies a deliberate effort to achieve a goal, sometimes with uncertainty about the result.

To record or document something in writing or on other media; a written record of events.

The main idea, gist, or central theme of a text, speech, or lecture.

A version of something that differs in some way from others of the same kind or from a standard. Often used in biology, linguistics, and art.

A systematic theory or doctrine, especially one held by a particular group or individual in science or philosophy.

Soon after; following that. Used to describe an event occurring immediately after another.

Up to this time; until now. It is often used to emphasize a record, a state of affairs, or the extent of something up to the present moment.

To examine something in detail in order to understand it better or explain it. It involves breaking a complex topic into smaller parts to gain a better perspective.

To have an effect on the character, development, or behavior of someone or something, or the effect itself.

A general direction in which something is developing or changing.