Hydromechanical
a. 流体力学的
🗣️ 情景例句
Sam, this is Susan. Sam
我是Susan。
A proper amount of exercise contributes to good health.
适度的运动有益于健康。
Earlier, we were infants and young children, and consequently more vulnerable;
再早一些，我们是幼儿和小孩子，身体较脆弱；