Micraster
小蛸枕屬
??? 情景例句
His daughter is sick.
他女兒生病了。
I ask him to tell me everything he thought.
我要求他告訴我，他所想得每件事情。
An ocean wave passing through deep water causes a particle on the surface to move in a roughly circular orbit,
穿過深水的海浪使水面上的一個微粒按照一種近乎圓形的軌道移動，