airtight
airtight
air.tight AHD[âr“tºt”] DJ[6e*7ta!t] KK[6Wr7ta!t]
adj.(形容词)
1.Abbr.at.Impermeable by air.
    缩写at.不透气的,密封的
2.Having no weak points; sound:
    没有漏洞的;无懈可击的:
    an airtight excuse.
   无懈可击的借口