to be certain that something is true or will happen
être certain que quelque chose est vrai ou va se produire (etre certain ke kelk choz est vrai ou va se produire)
"You can take it to the bank that he’ll deliver on his promise."
"Tu peux être sûr qu'il tiendra sa promesse." (tu peux etre sur kil tiendra sa promesse)
to stay focused on your goal despite difficulties
it is a waste not to use your mental abilities
to keep something secret
to discuss ideas casually
Try to do better or go beyond your limits.
comparable in quality or ability