使双腿挺直，直到他们完全伸展开。

Straighten both legs until they are fully extended.

《柯林斯英汉双解大词典》

至少有6个其他的线路已经在建设，目标是伸展地铁网络使之大于561公里以及420个站台。

At least six others are already under construction, with an aim to stretch the network to more than 561 km and 420 stations.

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当连接到大鼠的横隔膜时，该动物的呼吸使纳米线得到伸展，并产生少量的电力——每两毫伏约4微微安培电流。

When attached to the rat's diaphragm, the animal's breathing stretched the nanowire, and it generated a tiny amount of electricity — about four pico-amps of current at two millivolts.

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