🧩 词语组成解析
preventive
[pri'ventiv, pri:-]
n. 预防;防止;预防措施;预防药;
adj. 预防的;防止的;
attack
[ə'tæk]
vt.& vi. 攻击，进攻，抨击;
n. 攻击;抨击;（队员等的）进攻;（疾病）侵袭;
vt. 抨击;非难;侵袭;损害;
🗣️ 情景例句
How many karats do you want?
你要几克拉的？
The more riches a fool hath, the greater fool he is.
愚人越富越愚蠢。
While two detectives were keeping guard at the door, two others opened the parcel.
这时两个侦探把住门口，另外两个侦探打开了包裹。