Say and no say 说‧不说
Don't say :-
"Sorry for inconvenience caused"
Say :-
"We are upgrading to serve you better."
Don't say :-
"Thanks for waiting patiently"
Say :-
"Your security is our concern, thank you for your co-operation."
Don't say :-
"阴錯阳差"
Say :-
"机缘巧合."
Don't say :-
"reduce/cut down"
Say :-
"Optimize"
Don't say :-
"走着瞧"
Say :-
"山水有相逢"