quoit
n. 铁圈;金属环
vt. 投掷
vi. 玩套环游戏
复数 quoits
第三人称单数 quoits
现在分词 quoiting
过去式 quoited
过去分词 quoited
例句
These oil fields contain many oil quoit and there are on enough oil and gas and there are complicated characteristic.
这些油田具有多层系含油、多种圈闭类型、油气富集程度不均,油气水纵向、横向关系复杂的特点。