acted as reference mutual的用法和样例：
- We hope that the conclusions can act as references for theoretics of ADSS and developing ADSS in practice.
- These sequencing numbers also act as reference numbers so that the receiver will know if it has received all of the data.
- I went away so my daughter acted as hostess.
- The good news acted as a tonic on us all.
- The forest will act as a defense against desert dust.