be hard to do sth做某事很困难
find it hard to do sth发现做某事很难
be hard to do sth.做…有困难
find it hard to do sth.发现做某事难
try hard to do sth.尽力做某事
be difficult/hard to do sth.难于做某事
It’s hard to do sth.做某事感到困难
go to (great) lengths to do sth. = try hard to do sth努力去做某事
追问0 0....hard to do sth 什么意思???告诉就好了