"there was still a rusty iron hoop for tying a horse"
"hoop vats"
Those friends thou hast,..Grapple them to thy soul with hoops of steel.
If ever henceforth thou..hoop his body more with thy embraces.
A man hooping a barrel.
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)