like: dùng song song cả hai
Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
dùng song song cả hai * ☊ 
to use both in parallel, at the same time * ☊
[ dùng ] : (1) to use, resort to; (2) to eat (polite)
[ song ] : (1) but, however, still, nevertheless; (2) pair, couple; fellow (worker, classmate); (3) window, bar
[ song ] : (1) but, however, still, nevertheless; (2) pair, couple; fellow (worker, classmate); (3) window, bar
[ cả ] : (1) oldest, biggest; old; (2) both, everyone, all (of), entire, whole; (3) even, also, as well; (4) at all
[ dùng ] : use
[ dùng ] : wear