正式批准

• approval
• official approval

例句

1. 我们的提案得到正式批准。
   Our proposal is given official sanction.
2. 关于我在1月10日到3月31日期间离校的事尚未得到校方的正式批准。
   I have not yet been given official permission from the University for my leave from January1 to March31.