Dewar(vacuum)flask
[化] 真空瓶; 杜瓦(真空)瓶
🗣️ 情景例句
You may be offered coffee, and then you should immediately announce the reason for your visit.
他们会给你冲咖啡，然后你应该尽快说明来意。
She says she loves me, but my relatives say she is just after my money.
她说她爱我，但是我的亲友说她只是想要我的钱。
Columbus discovered America in l492.
哥伦布于1492年发现了美洲。