I shall lift him on the settle, 'I said,' and he may roll about as he pleases: we can't stop to watch him.
“我来把他抱到高背长靠椅上，”我说，“他爱怎么滚就怎么滚。”我们不能停下来守着他。
It can roll about a line from nose to tail — the longitudinal axis; and it can yaw, left or right, about the vertical axis.
他可以绕着从机头到机尾的纵轴来翻滚；并且可以绕着竖轴向左或向右偏航。
It can roll about a line from nose to tail — the longitudinal axis; and it can yaw, left or right, about the vertical axis.
他可以绕着从机头到机尾的纵轴来翻滚；并且可以绕着竖轴向左或向右偏航。
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