Peel a thick-skinned orange and square off the ends with a sharp knife.剥开一只厚皮橙子，用锋利的刀将两端削去使它呈方形。Therefore, TRF 2 may protect chromosome ends by maintaining the correct structure at telomere termini.因此, TRF2可保护染色体末端保持正确的结...
It will be set fair for one week. Let's have a picnic.这一周天会晴的, 我们去野餐 吧.If it does not rain tomorrow, we shall have a picnic.如果明天不下雨, 我们将去野游.Comes here to have a picnic can be really strange!上这儿来野餐可真怪!...