tā / bǎ / yú bái / qǔ chū / hòu / xiǎo xīn yì yì / de / fàng / zài / péi yǎng mǐn / lǐ

他把鱼白取出后，小心翼翼地放在培养皿里。

After extracting the milt, he carefully placed it in a petri dish.