She had a habit of taking an occasional nip from a flask of cognac.她有偶尔喝一小口干邑的习惯。The vacuum flask has a strong casing, which won't crack or chip.这种热水瓶瓶身坚固，不易断裂破碎。...the vacuum flask that was resting on top of the st...
The flask is completely watertight, even when laid on its side.即使平放，这个真空水杯也是滴水不漏。There's some sandwiches here and a flask of coffee.这里有些三明治和一瓶咖啡。She made sandwiches, filled a flask and put sugar in.她做了三明治，把保温瓶灌满，又放了...