1. It's a deal, behave well;
2. Consistency in words and deeds;
3. Be of one mind and like-minded;
4. Kill two birds with one stone and get twice the result with half the effort;
5. Treat each other as equals, equality and mutual benefit;
6. Keep your word and keep your promise;
7. Take the lead in charging;
8. Smooth sailing and bon voyage;
9. wholeheartedly, wholeheartedly;
10. A thousand miles a day, a blockbuster.
I hope these can help you.