shoelace

常見例句

Your shoelace has come loose.
你的鞋帶松了。
《新英漢大辭典》
These DNA units, known as telomeres, act like the plastic caps at the ends of a shoelace, keeping the chromosomes from fraying and the genes inside them from unraveling.
這些DNA部分即所謂的端粒，它們的作用類似鞋帶兩頭的塑料帽，可以保持染色體不會(huì)磨損，里面的基因不會(huì)散開。
They will be measuring the length of telomeres — wads of DNA at the top and bottom of every chromosome that, like shoelace tips, keep them from unraveling when a cell divides.
他們將測(cè)量染色體端粒的長度。染色體端粒是第個(gè)染色體兩端的 DNA團(tuán)塊，就像鞋帶的末端，在細(xì)胞進(jìn)行分裂時(shí)，它會(huì)阻止DNA鏈散開。