例句與造句

1. Er lacking ribosomes is called smooth er is involved with lipid synthesis , including phospholipids and steroids
   無核糖體附著的內(nèi)質(zhì)網(wǎng)稱為光面內(nèi)質(zhì)網(wǎng)，主要與脂質(zhì)（包括磷脂和類固醇）的合成有關(guān)。
2. It's difficult to find smooth er in a sentence. 用smooth er造句挺難的