arch (obj) HB:tF, $B:rtF v 拱起，弯起 At this point on the river, the trees arch (=make the shape of an arch) right over it. [I] 在河的这一段，那些树都弯垂至河面上。 Her eyebrows arched in contempt. [I] 她蔑视地耸起双眉。 Cats often arch their backs when they're angry. [T] 猫在发怒时常弓起背。