plunk down
放下,使倒下,隤然坐下,沈重地躺下;付出,支付
plunk down
v : set (something or oneself) down with or as if with a noise;
"He planked the money on the table"; "He planked himself
into the sofa" [syn: plank, flump, plonk, plop, plunk,
plump down, plump]