käsivarsi in English:

Tom's broken arm took several weeks to heal.

Tom bet Mary that he could beat her at arm wrestling.

The grenade blew up before the terrorist could throw it, and his arm was blown off!

my arm hurts

Prices for land in Tokyo now are an arm and a leg for even the smallest place.

As he unhesitatingly extended his arm towards me, he came to touch my private areas.

My insurance coverage is too limited, so I guess I'll just have to live with my arm bones jutting out of my skin.

Harold's arm bicycle workout was sufficiently vigorous that his pectorals burst into flame.

Iron Arm Atom protected the country from danger.

Burning the candle at both ends reduces the candle to wax in a hurry - just like a playboy having a pretty girl on each arm.

His utter failure at the last peace conference has taught him to arm himself to the teeth with new tricks and tactics.

The arms allow us to balance while running.

He put one hand on the driving wheel, and the other on the arm. Pull the arm to start the machine

The shoulder joints, as well as moving on their own, also move in conjunction with arm movements.

In a characteristically awkward move, Regis patted his guest on the arm.