Vacuum tight
[化] 真空密封
🧩 词语组成解析
tight
[taɪt]
adj. 紧的，牢固的;绷紧的;不漏的;密集的，紧凑的;
adv. 紧紧地;牢固地;
🗣️ 情景例句
Hello.
好。
It seems as if it's going to rain.
看起来天好像要下雨。
Up to now, historians have assumed that calendars came into being with the advent of agriculture, for then man was faced with a real need to understand something about the seasons.
历史学家迄今认为日历是随农业的问世而出现的，因为当时人们面临着了解四季的实际需要，