挂钩: hook (on which to hang sth), to couple, to link together, to establish contact with, hook, coupling links (e.g. between two railway coaches)...
向上: upward, up, to advance, to try to improve oneself, to make progress...
印象: impression (sth that stays in one's mind), a memory...
树: tree, to cultivate, to set up...
分: to divide, minute, (a measure word), (a unit of length = 0.33 centimeter), part...
