Surely you have ridden a bicycle, and perhaps you have run a sewing machine.

你肯定骑过自行车，也许还开过缝纫机。

Not until she fixes the sewing machine.

她得先修了缝纫机才行。

" By hand" means using her own hands, not using the sewing machine.

“用手” 是指用她自己的双手， 而不是用缝纫机。

" No, no...but can't you drive yourself? In that little Japanese sewing machine you arrived in the other day? " he tries to protest.

“不是… … 不是… … 但你不能自己开车吗？就开你们那天来的时候坐的那台日本小缝纫机。”他据理力争。

Can you help me adjust them, I'm not good at sewing myself and I don't have a sewing machine or anyneedles or thread.

你能帮我调整一下吗？ 我自己不擅长缝纫， 而且我没有缝纫机， 也没有针线。

While her patients were in hospital she saw that they were taught to read and write, or to use a sewing machine, in order to go back skilled and confident as well as healed.

在医院里，她的病人们学习文化知识，学习缝纫技术；这样，她们就能带着技术回家，自信满满，创伤痊愈。