自底向上

bottom-up

self / oneself / from / since / naturally / surely

(equivalent to 的 as possessive particle)

background / bottom / base / end (of the month, year etc) / remnants / (math.) radix / base

surname Xiang

towards / to face / to turn towards / direction / to support / to side with / shortly before / formerly / always / all along / (suffix) suitable for ... / oriented to ...

to tend toward / to guide / variant of 向[xiang4]

variant of 向[xiang4] / direction / orientation / to face / to turn toward / to / towards / shortly before / formerly

upward / up / to advance / to try to improve oneself / to make progress

used in 上聲|上声[shang3 sheng1]

(bound form) up; upper; above; previous / first (of multiple parts) / to climb; to get onto; to go up / to attend (class or university) / (directional complement) up / (noun suffix) on; above