onste起病, 开始, 病发作onprep.在 ... 之上；由 ... 支撑着；在（某一天）；关于；基于adv.穿着；向前（移动)；表示持续性adj.表示已连接、处于工作状态或使用中；发生；值班on chip communication architecture片上通信结构On Nonfulfillment of Contract Debt论合同债务不履行on-line automatic measure system水分On Boolean Group Algebra Semigroup关于布尔群代数半群on-line isotope separator target在线同位素分离器靶材料on-line monitoring and measuring在线监测On an interactive security measure一种交互式安全措施的研究On Mahatma Gandhi's Ethic ConceptsOn building payment by instalments山西建筑On Unchaining of Fluidity Contract论流质契约的解禁

1. Many people get away from the wrecked ship on a raft.
   许多人乘救生艇离开遇难的船。
2. The sailors got away from the wrecked ship on a raft.
   水手们乘救生筏离开失事的船。
3. They must think you are a madman if you tell them you want to cross the Pacific on a raft.
   如果你告诉他们你要乘木筏横渡太平洋，他们一定会认为你是个疯子。
4. We found the shipwrecked sailors on a raft.
   我们在一个木筏子上找到了失事船只的船员。