detour
n
(esp US) route that avoids a blocked road, etc; deviation (绕开受阻道路等的)绕行路线, 迂回路线
We had to make a detour round the floods. 我们为避开洪水得绕道而行. Cf 参看 diversion. detour, v [I, Tn]
avoid (sth) by making a detour 绕道以避开(某物); 绕过(某物)
We had to detour a road-block. 我们得绕过路障.