airtight
adj.
also air-tight, "impervious to air," 1760, from air, n.1 + tight. Figurative sense of "incontrovertible" (of arguments, alabis, etc.) is from 1929.
〔李〕a. 不透气的，密封的 ←-tight [MnE] a .=not allowing the passage of表示“不透的”
〔李〕a. 不透气的，密封的 ←-tight [MnE] a .=not allowing the passage of表示“不透的”