潮水小的时候强风可以让船只改变航向。Strong winds can turn boats when the tide is weak.舵手独自一人就能变换航向。The helmsman could tack the boat singlehanded.根据星辰确定航向to navigate by the stars...
Gross crystalline imperfections like twinning are apparent to the unaided eye.粗的晶体不完整性,如孪生体可用肉眼看出.Really focus in and find your wobbles , jerkiness , effort, and imperfections.真正的专注,要发现自己的晃动 、 急拉等动作, 找出正确和不足的地方.Electron ...
对于很多加利福尼亚的印第安人而言，猫头鹰是圣物。The owl is sacred for many Californian Indian people.外面的花园里突然有一只猫头鹰呜呜地叫起来。Out in the garden an owl hooted suddenly.一只猫头鹰在附近啼叫。An owl hooted nearby....