to counteract, to cancel out, to offset

to resist, to withstand

to resist, to hold back, to stop, to ward off, to withstand

阻止某些事物, 使不能侵入或发生作用

to conflict, to contradict

first floor, understratum, bottom, underside, the lowest rung, first, undersurface, underlayer, ground level, ground floor, first/ground floor, substratum, first_floor, basement