c. 1400, "naturally inclined to something, apt, liable," from Latin pronus "bent forward, leaning forward, bent over," figuratively "inclined to, disposed," perhaps from adverbial form of pro- "before, for, instead of" (see pro-) + ending as in infernus, externus. Meaning "lying face-down" is first recorded 1570s. Literal and figurative senses both were in Latin; figurative is older in English. Related: Proneness.
实用例句
1. Bob slid from his chair and lay prone on the floor.
鲍勃从椅子上滑下来，趴在了地板上。
来自柯林斯例句
2. As they shorten, cells become more prone to disease and death.
细胞变小后就会更容易感染疾病，也更容易死亡。
来自柯林斯例句
3. He's prone to flit between subjects with amazing ease.
他往往会轻松自如地转换话题。
来自柯林斯例句
4. This leaves fertile soil unprotected and prone to erosion.
