保持放松、直立的坐姿。Sit in a relaxed upright posture.马忽然用后腿直立起来,把我摔下马背.The horse suddenly reared up and threw me off.种马用后腿直立起来.The stallion upreared on its hind legs....
It is possible to follow the complete buildup of oscillation.了解振荡建立的整个过程是可能的.The buildup of impurities often results in defective plating.杂质的积累经常导致不良的电镀.We get a buildup of electronic probability density between the nucl...