unpenetrable
- [物] 不能穿入的
英文词源
- unpenetrable (adj.)
- c. 1400, from un- (1) "not" + penetrable (adj.). The usual word now is impenetrable.
推荐单词
- trader
- trademark
- trade-off
- trade-in
- self-protection
- self-preservation
- self-portrait
- self-possession
- self-pity
- self-perfection
- self-perception
- self-made
- self-motivation
- self-love
- self-interest
- self-justification
- self-involved
- self-incrimination
- self-inflict
- self-indulgent
- self-indulgence
- self-improvement
- self-important
- self-immolation