Level 3 · word 2,384 of 20,000
efficient
/ɪˈfɪʃənt/
American

- adj. 高效的, 有效率的
- Definition
- adj. working well without wasting time, effort, or money
- Example
- The new machine is much more efficient than the old one.
- 这台新机器比旧的那台高效得多。