Level 4 · word 3,451 of 20,000
invisible
/ˌɪnˈvɪzəbəl/
American
- adj. 看不见的, 无形的
- Definition
- adj. impossible to see
- Example
- The ink was invisible until we held the paper near heat.
- 这种墨水本来是隐形的，直到我们把纸靠近热源才显现出来。