上下

up and down; from top to bottom; high and low; old and young; relative superiority or inferiority; in the neighbourhood of; superiors and subordinates; go up and down; rise and fall; fluctuate; around; about; approximately; thereabouts; near

左右

about; around; roughly; approximately; thereabouts; left and right; the left and right sides; influence; sway; dominate; determine; work on; circa; something; or so; in any case; plus or minus; somewhere around; or thereabouts; something like; along about; -ish

前后

before and after; back and forth; from start to finish; from beginning to end; front and back; to and fro; front and rear; around; approximately; about; roughly; throughout