Spondylolisthesis
n. [醫]脊椎前移
??? 情景例句
Well, help me serve, Robbie.
好 幫我分菜 Robbie。
That deep sigh could only express Helen's sadness.
那深深的嘆息，不外乎表示出海倫的悲哀。
Because the Moon has only an eightieth of the Earth's mass,
因為月球的重量只有地球的1/8，