She put on her spectacles, threaded a needle, and stitch by stitch sewed up the rent in the sleeve.
她戴上眼镜，穿好针，然后一针一针地把衣袖上的裂缝补好。
She put on her spectacles, threaded a needle, and stitch by stitch sewed up the rent in the sleeves.
她戴上眼镜，穿好针，然后一针一针地把衣袖上的裂缝补好。
A needle valve with a threaded spindle is unscrewed to open a passage for the liquid to escape to the reservoir from the cylinder when the jack is required to be lowered.
当千斤顶需要下降时，一个带锭子的针型阀门被放松来使液体通过圆筒流回储备液箱。
A needle valve with a threaded spindle is unscrewed to open a passage for the liquid to escape to the reservoir from the cylinder when the jack is required to be lowered.
当千斤顶需要下降时，一个带锭子的针型阀门被放松来使液体通过圆筒流回储备液箱。
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