真诚的

• pure-hearted
• sincere
• undissembling
• heartful
• bona fide
• bona
• honest
• frank
• genuine

例句

1. 我肯定他是真诚的。
   I'm certain about his sincerity.
2. 如果这种友谊是真诚的，那么它就能经得起时间的考验。
   If this friendship is real, it can stand the test of time.