Theory formation
[计] 理论形成
🧩 词语组成解析
formation
[fɔ:'meiʃən]
n. 形成;构成，结构;形成物;编队，队形;
🗣️ 情景例句
One is as old as one's heart.
心多老人多老。
John had a rough time last night.
约翰昨晚好像挺轰轰烈烈的样子。
On arriving in England, they were taken to the Crystal Palace by train.
一到英国，火车就把他们送到了水晶宫。