松开

松开	sōng kāi	to release / to let go / to loosen / to untie / to come loose
松	Sōng	surname Song
松	sōng	pine / CL:棵
松	sōng	loose / to loosen / to relax / floss (dry, fluffy food product made from shredded, seasoned meat or fish, used as a topping or filling)
开	kāi	to open (transitive or intransitive) / (of ships, vehicles, troops etc) to start / to turn on; to put in operation; to operate; to run / to boil / to write out (a prescription, check, invoice etc) / (directional complement) away; off / carat (gold) / abbr. for Kelvin, 开尔文 / abbr. for 开本, book format