半途而廢

Half; semi-; incomplete; in the middle; a very small amount; part of something; and a half (after a number).

Road; way; route; path; journey; course; can also mean scope or range.

A conjunction connecting clauses or phrases; indicates addition, contrast, or a causal relationship; also used to indicate a change of state.

to abolish; to abandon; to discard; to depose; crippled; disabled; useless; to decay; to ruin