Secondsry attack rate
[医] 二代发病率
🧩 词语组成解析
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;
rate
[reit]
n. 速度;比率;等级;（利息等的）费率;
vt. 估价;值得;责骂;定级;
vt.& vi. 认为，把…算作;
vi. 被评价;被认为;被列入;申斥;
🗣️ 情景例句
It's his first venture into business.
他初涉商界。
Every day of thy life is a leaf in thy history.
生命中的一天就是你历史上的一页。
Just as Mrs.Richards was entering the dinning room, there was a knock on the front door.
理查兹夫人刚刚走进餐厅，前门就传来敲门声。