Downstroke
[冶]下行程(结晶器), [机]下行冲程
🗣️ 情景例句
What have you learned from jobs you have held?
你从以往的工作中学到什么？
It is madness for a sheep to treat of peace with a wolf.
跟狼讲和平，此羊必癫狂。
She gave her luggage to a porter and showed him her ticket.
她把行李交给搬运工并给他看了车票。