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holdfast/
'hold.fæst
'həuldfɑːst
/
1.noun
保持;紧握;固定;地锚;固定其他物的东西如钉子、钩子、夹钳、支架、卡具等
2.noun
紧握（的动作）
3.noun
(海草、寄生动物等的)吸盘,固著器
4.noun
紧扣（或紧握）的东西；钩，钉子，夹钳，夹子等
5.noun [Botany]
固着器
6.noun [Zoology]
吸附器官