por Yu Weiran hace 8 años
337
Ver más
by doing A, sb fails to do
A makes it difficult to do
A prevents/keeps sb from doing sth
harmful
harm
hamper
by doing A, sb manage to do
makes it possible to do
enable/allow to do
be beneficial to sth.
benifit
aid
clarify diversify
enable endanger
enhance
boost
strengthen
promote