n. 1.紧缠，紧握。 2.钩子，钉子，夹钳。 3.【动物；动物学】吸附器官。 4.【植物；植物学】固着器。 短语和例子 lose one's holdfast 放松，控制不住。
Example Sentences:
1.
At this discouragement there seemed, even to her holdfast nature, no way out . 在这阴暗失意的时刻，连她这样一个遇事死也不放手的人，也觉得走投无路了。
2.
Haines laughed and , as he took his soft grey hat from the holdfast of the hammock , said 他一面从吊床的钩子上摘下自己那顶灰色呢帽，一面说道：
3.
Holdfast ( hapteron ) in algae , the cell or organ that attaches the plant to the substrate 固着器：是藻类植物具有的一种起固着作用的细胞或器官。
4.
Stipe 1 . in the more highly differentiated phaeophyta ( brown algae ) , such as wracks and kelps , the stalk between the holdfast and the blade 柄：在高度分化的褐藻门植物如角藻、巨藻等海藻中，连结基足和叶状体之间的茎状物。
5.
Cladophorales an order of chlorophyta ( green algae ) , generally called siphonaceous algae . they are multicellular saclike forms or branched filaments with branching rhizoidike holdfasts , e . g . cladophora 刚毛藻目：绿藻门中的一目，称为虹吸管状的藻类。它们是多细胞囊泡状的或分枝的丝状体，用分枝状的假根固着。例如刚毛藻属。
6.
Under a row of five coiled spring housebells a curvilinear rope , stretched between two holdfasts athwart across the recess beside the chimney pier , from which hung four smallsized square handkerchiefs folded unattached consecutively in adjacent rectangles and one pair of ladies grey hose with lisle suspendertops and feet in their habitual position clamped by three erect wooden pegs two at their outer extremities and the third at their point of junction 那是一排五个家用螺形弹簧按铃，下面，在烟囱那凹进去的间壁两侧的两个钩子之间，弯弯地横系着一根绳子，上面挂着四块对折的小方手绢：一块挨着一块，彼此并不重叠，呈长方形。另外还有一双灰色长统女袜，袜帮是用莱尔棉线25织的，脚脖子以下是通常的样式。
