All your blood flows through your kidneys 400 times a day in order to filter out the waste.

为了过滤废物，你所有的血液每天流经肾脏 400 次。

Russian gas will not flow to Germany any time soon.

俄罗斯天然气短期内不会流向德国。

" My ideas flow so rapidly that I have not time to express them -- by which means my letters sometimes convey no ideas at all to my correspondents."

“我念头转得太快，简直来有及写，因此有时候收信人读到我的信，反而觉得言之无物。”

There are DC generators, which include special parts to make the current keep flowing in the same direction the whole time, instead of reversing itself as the coil turns.

有直流发电机，其中包括特殊部件，使电流始终沿同一方向流动，而不是在线圈转动时自行反转。