written approval

• 书面同意

written approval的用法和样例：

例句

1. The written consent of a parent is required.
   要求有家长的书面同意。
2. One party can transfer or relegate this agreement to the third party under the approval of the other party.
   经一方书面同意，另一方可将本协议转让或委托给第三方。