When a body has waste it does not need, it has to send that waste out. That sending-out is to excrete.

When a body has waste it does not need當身體有不需要的廢物時 it has to send that waste out就得把那些廢物排出去 That sending-out這個排出去的動作 is to excrete就是excrete

You excrete through the bowel (solid waste), as urine, and a little through the skin as sweat.

You excrete你排泄的管道 through the bowel (solid waste)透過腸道排出固體廢物 as urine以尿液的形式 and a little through the skin as sweat還有一點透過皮膚變成汗排出

Doctors and biology teachers use this word; at home people more often say go to the toilet or sweat. It is not a rude word, but it is a body-science word, so it can feel cold and medical.

Doctors and biology teachers use this word醫生和生物老師會用這個字 at home people more often say在家裡大家比較常說 go to the toilet or sweat上廁所或流汗 It is not a rude word它不是個粗俗的字 but it is a body-science word但它是個身體科學的字 so it can feel cold and medical所以會讓人覺得有點冷冰冰、醫學味重

Though actually, learners mix it up with secrete, which is almost the other job of “send out”: a gland makes a useful liquid — spit, milk, a hormone — and sends it out on purpose. Excrete is for waste. Same sort of picture, different job.

Though actually不過其實 learners mix it up with secrete學習者常把它跟secrete搞混 which is almost the other job of "send out"那幾乎是「送出去」的另一種工作 a gland makes a useful liquid腺體製造出有用的液體 spit, milk, a hormone口水、乳汁、荷爾蒙 and sends it out on purpose然後刻意把它送出去 Excrete is for wasteExcrete是給廢物用的 Same sort of picture同樣的畫面 different job不同的工作