Level 2 · word 1,367 of 20,000
useful
/ˈjuːsfəl/
American

- adj. 有用的, 有益的
- Definition
- adj. helpful or able to be used for a practical purpose
- Example
- This small tool is very useful for fixing loose screws quickly.
- 这个小工具对快速拧紧松动的螺丝很有用。