例句與造句

1. However , this technique is still in its infancy : a continuous cell line has yet to be established
   盡管取得了一定的進展，但穩(wěn)定的傳代細胞系的建立仍是世界范圍內(nèi)的難題。
2. It's difficult to find continuous cell in a sentence. 用continuous cell造句挺難的