地心吸力的 Engish 是......................................

gravity Show phonetics
noun [U]
the force which attracts objects towards one another, especially the force that makes things fall to the ground:
the laws of gravity

gravitational Show phonetics
adjective
gravitational forces

gravity
n.[U]
1. 【物】重力;引力;地心吸力
The stone rolled down the hill by gravity.
石頭在重力作用下向山下滾去。
2. 重(量)
3. 嚴重性;危險性;重大
She does not know the gravity of her illness.
她不知道自己病情嚴重。
4. 嚴肅;莊嚴;認真
He could hardly keep his gravity.
他忍不住要笑出來。
5. 低沈

gravitation