Spiro hydrocarbon
[化] 螺环烃
🧩 词语组成解析
n. 斯皮罗（男子名）；瑞士事佰诺（公司名）
🗣️ 情景例句
No. It has three bedrooms and three baths.
不。这栋房子有三间卧室、 三间盥洗室。
I may be the first.
说不定我得第一。
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，