在橄榄树的根部可以找到像铅笔一样长的蜈蚣。In the roots of the olives, you could find centipedes as long as a pencil.那个生物是一只很小的蜈蚣，只有10毫米长。The creature is a tiny centipede, just 10 millimeters long.一只蜈蚣飞快地爬开了.A centipede snaked swiftly away....
She behaves frivolously, she is not at all sedate.她举止飘浮, 很不稳重.However, if you hoard money selfishly or spend it frivolously, you will never have enough.相反, 如果你自私地把钱藏起来或者用在愚蠢的地方, 会永远觉得钱不够多.She spends her time frivolously ...
I clacked one ski against the other and almost tripped.我的一个雪橇板咔嗒一声撞在另一个上面，差点把我绊倒。The windshield wipers clacked back and forth.挡风玻璃上的雨刷咔嗒咔嗒来回摆动。Her heels clacked on the marble floor.她的鞋后跟在大理石地面上发出咔嗒咔嗒的响声。The merry film cl...
ECHO cloning is a rapid, easy and common DNA recombination technique.目的:利用ECHO克隆 系统建立一种更加快速 、 方便、通用的DNA重组技术.The methods include using Agrobacterium - mediated transformation , electroporation, gene gun bombardment andgly...