Peel a thick-skinned orange and square off the ends with a sharp knife.剝開一只厚皮橙子，用鋒利的刀將兩端削去使它呈方形。Therefore, TRF 2 may protect chromosome ends by maintaining the correct structure at telomere termini.因此, TRF2可保護染色體末端保持正確的結...
The journey ends in the ancient city of Marrakesh.旅行的終點是馬拉喀什古城。He sweeps up and does a few odds and ends.他掃完地，又干了幾樣雜活兒。He fears inflation will ratchet up as the year ends.他害怕通貨膨脹會在年終更加嚴重。...