肯定 → ☊ ken3ding4 
to be sure; to be certain; sure; certain; definite; to confirm; to affirm; affirmative; to approve; approval; recognition ☊ 
Chắc chắn ☊ 确实的 ☊ → 肯定的 ☊ → ☊ → 
certain 证实 ☊ → 肯定 ☊ → 批准 ☊ → confirm 明确的 ☊ → 肯定的 ☊ → ☊ → definite 一定 ☊ → 肯定地 ☊ → 一定地 ☊ → definitely 确信的 ☊ → 肯定的 ☊ → ☊ → sure 确实 ☊ → 一定 ☊ → 当然 ☊ → surely