Translation

勧める / 推薦する / 推奨する

Meaning

Recommend means to say that someone or something is good, suitable, or advisable. It can be casual, professional, or official. The trap is the grammar: say recommend trying or recommend that, not recommend to try by itself.

Examples

• この本を強くお勧めします。
  I highly recommend this book.
• 医師は一週間休むことを勧めました。
  The doctor recommended resting for a week.