-----------------------------------
たまたま, 偶々, 偶偶, 偶, 適
1. by chance, by accident, accidentally, happen to (be, do), unexpectedly, casually
2. occasionally, once in a while, now and then
tbd
-----------------------------------
並ぶ, 列ぶ, 双ぶ, ならぶ
1. to line up, to stand in a line
2. to rival, to match, to equal
排队、排列;排成一行;与之竞争;与之相当;与之相等