billethead的翻译，读音
英/'bilit,hed/
释义：
卷索柱；雕刻船首饰
n. A round piece of timber at the bow or stern of a
whaleboat, around which the harpoon lone is run out when the whale
darts off.
n. A round piece of timber at the bow or stern of a
whaleboat, around which the harpoon lone is run out when the whale
darts off.