Scientists are
then able to pump air or fluid through the tubes to mimic breathing or blood
flow.
New drugs can then be introduced into these micro-systems, revealing
any negative effects they may have on humans.
感覺其中的then似乎拿掉也對句子沒影響
這是類似然後 接著 這樣的意思嗎
比如說翻為
接著科學家們可以管路灌入空氣..
然後新的藥物可以被注入這些..
這樣?