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...
The soles are made of leather.鞋底是皮革做的。The grit beneath her soles grated harshly on the wooden deck.粘在她鞋底的沙砾蹭在木甲板上发出刺耳的声音.The soles of his feet were raw with chilblain.他的脚底生了冻疮很疼痛....