boomerangs

澳大利亚原住民用于狩猎或战斗的各种传统投掷棒,包括对称的月牙形(回旋镖)。

Any of various traditional throwing sticks used for hunting or combat by Australian aborigines, including the symmetrical, crescent-shaped, type (the returning boomerang).

一种弯曲木片,正确投掷后可返回投掷者手中

a curved piece of wood; when properly thrown will return to thrower

一种扁平弯曲的翼型,绕垂直于飞行方向的轴旋转,最初在世界各地用作狩猎武器,可返回的类型用于运动或训练。

A flat curved airfoil that spins about an axis perpendicular to the direction of flight, originally used in various parts of the world as a hunting weapon or, in returnable types, for sports or training.

适得其反的误算

a miscalculation that recoils on its maker