Nickase(dna)
[化] 切口酶
??? 情景例句
A movie!
電影！
The place is too stony for farming.
這地方太多石塊，不適合耕種。
Libraries made education possible, and education in its turn added to libraries: the growth of knowledge followed a kind of compound interest law, which was greatly enhanced by the invention of printing.
藏書使教育成為可能，而教育反過來又豐富了藏書，因為知識的增長遵循著一種“滾雪球”的規律。印刷術的發明又大大提高了知識增長的速度。