Retail gravitation
[經] 零星吸引力
?? 詞語組成解析
gravitation
[?gr?vi'tei??n]
n. 吸引力，傾向，趨勢;
??? 情景例句
It doesn't mean you have to be a doctor.
這并不意味著你一定要當醫生。
Her skirt is behind the chair.
她的裙子在椅子后面。
The remains of plants and animals that lived on land are much more rarely preserved, for there is seldom anything to cover them over.
曾在陸地上生活過的動植物的遺體被保存下來的更為罕見，因為陸地上幾乎沒有什么東西覆蓋它們。