One who or that which throws, molds, calculates, etc.

投掷者；铸造者；计算者。

(Also, castor) a cruet or small vessel for holding salt, pepper, vinegar, etc., at table.

(餐桌上的)调味瓶。

(Also, castor) Rack for holding these containers.

调味瓶架子。

A small roller on a swivel, fastened under a piece of furniture to help in moving it.

脚轮(装置家具的脚下以便于移动)。