腕を放してくれませんか。

arm; skill; efforts; ability

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

to release; to let go; to free; to set free; to let loose; to turn loose; to add (pieces of eggplant, potato, etc.) to water, broth, etc.

indicates a question (sometimes rhetorical); or; whether or not; some- (e.g. something, someone); indicates doubt, uncertainty, etc.; emphatic prefix; suffix forming adjectives or adverbs; in that way