recommended       
adjective uk/ˌrek.əˈmen.dɪd/ us/ˌrek.əˈmen.dɪd/
 建议的,推荐的
suggested as being good or suitable for a particular job or purpose, or suggested as an action that should be done
  It is dangerous to take more than the recommended dose of this medicine. 超过推荐剂量服用此药是有害的。 
 She is a highly recommended architect. 她是一位备受推崇的建筑师。 
 See: recommend
 - More examples
 - a 20-miles per hour recommended speed limit
 - This book is recommended reading.
 - The burger contains over half the recommended daily calorie allowance for an adult male.