1)aggressive / əˈgresɪv; əˋɡrɛsɪv/ adj
(a) (of people or animals) apt or ready to attack; offensive; quarrelsome (指人或動物)侵略的, 好攻擊的, 好尋釁的, 好爭吵的
eg：dogs trained to be aggressive 訓(xùn)練成攻擊型的狗
eg：Aggressive nations threaten world peace. 侵略成性的國家威脅世界和平.
(b) (of things or actions) for or of an attack; offensive (指事物或行動)攻擊性的: aggressive weapons 攻擊性的武器.
(often approv 常作褒義) forceful; self-assertive 強(qiáng)有力的; 堅持己見的
eg：A good salesman must be aggressive if he wants to succeed. 要做個好推銷員一定要有闖勁才能成功.
2)aggressively adv. aggressiveness n [U].