| 单词 | airtight |
| 释义 | airtight (once / 20520 pages) adj If something's airtight, it is completely sealed so that no air can get in or out of it. When you make homemade jam with the raspberries you picked, it's important to make sure the lids are airtight so the jam won't spoil. Many kinds of food and medicine you buy in a store are airtight. The airtight seal on a package, bag, or can assures you that the contents are safe from any germs that might get in and contaminate them. You can also use this adjective to mean "certain" or "indisputable," like an airtight alibi that can't be argued with, or an airtight plan that's guaranteed to work. WORD FAMILYairtight USAGE EXAMPLESThese will keep well for up to 3 days in an airtight container. The Guardian(Dec 25, 2016) The cookies should be put away in a moist place like a basement or kept in a metal or airtight container to soften. New York Times(Dec 13, 2016) In a bouncy castle, a continuously running air compressor creates overpressure in a fabric structure that is not airtight. New York Times(Oct 12, 2016) 1adj not allowing air or gas to pass in or out Syn air-tight, gas-tight tight of such close construction as to be impermeable 2adj having no weak points an airtight defense an airtight argument Syn air-tight invulnerable immune to attack; impregnable |
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