Gravitational theory
n. 万有引力定律\\n
🧩 词语组成解析
gravitational
['grævə'teiʃənəl]
adj. 万有引力的，重力的;地心吸力的;
🗣️ 情景例句
The course I took was above me.
我上的这门课太难了。
There are one hundred pennies in every dollar.
每美元是一百美分。
Cave exploration, or pot-holing, as it has come to be known, is a relatively new sport.
洞穴勘查——或洞穴勘探——是一项比较新的体育活动。