再问下make it difficult 后面接to do 还是in doing 为什么
再问下make it difficult 后面接to do 还是in doing 为什么
make it a rule to do 还是 DOING 为什么
make as 后面加to do 还是 doing
It's difficult to do sth 还是It's difficult doing sth
mind后面接doing还是to do?
aim后面接to do 还是doing
refuse 后面接doing还是to do
it takes sb.sometime 后面是to do还是doing
It's worth while 后面是to do 还是doing
It's no pleasure 后面加doing 还是to do
start后面接doing 还是to do 还是do?
是find difficult doing还是find difficult to do