Since nobody who resorts to IVF accidentally ends up with 10 good spare embryos, this is really a pitch to produce extra embryos just for the cell lines.
由于没有谁诉诸体外受精的意外结束了10多余个胚胎，这的确是一个为了细胞株而产生多余的胚胎的音调。
2
XML message packaging and parsing brings extra overhead to both ends.
XML消息的打包和解析会在两端都带来额外的开销。
3
My apartment lease ends next week, but I have some wiggle room because my landlord said I can stay an extra month if I need to.