绿叶的生与死乃是旋风的急骤的旋转，它的更广大的旋转的圈子乃是在天上繁星之间徐缓的转动。

The birth and death of the leaves are the rapid whirls of the eddy whose wider circles move slowly among stars.

youdao

徐缓的（地）；行板的（地）：节奏徐缓，通常认为比稍快板慢但比慢板快。主要用作演奏演唱指示。

In a moderately slow tempo, usually considered to be slower than allegretto but faster than adagio. Used chiefly as a direction.

youdao

当前，还没有人知道SIDS的婴儿是因心跳徐缓或体温降低或两者都是。

At the moment, nobody knows if SIDS babies die of brachycardia or hypothermia or both.

youdao