GbEng
偶然的相遇使两位老朋友重新聚首。 A chance meeting brought the two old friends together again.
我遇见她完全是偶然的. I met her quite by chance.
我们只是在昨天才与她偶然相遇. We met her only yesterday, as it happens.
我们(彼此)相遇纯属偶然. We met (each other) quite by chance.
模态逻辑命题的限制条件,建立在其内容的肯定或否定其可能性,不可能性,偶然性或必然性基础之上 The classification of propositions on the basis of whether they assert or deny the possibility, impossibility, contingency, or necessity of their content.