She was taking quick puffs at her cigarette like a beginner.她像刚开始抽烟的人一样很快地吸着。As a beginner, everything is very new to him.他刚起步, 对一切都很生疏.The young man is a raw beginner.那个年轻人是个生手....
A beginner could really enjoy the hobby for an outlay of between £100 or £120 a month.初学者只需每月花上100到120英镑便能真正享受到这种爱好带来的乐趣。The young man is a raw beginner.那个年轻人是个生手.He doesn’t suffer fools gladly so he’s hardly the best pe...
Objective : To evaluate the cost - effectiveness analysis of treating lower respiratory infection with cefatrizine, cefotaxime and cefuroxime.目的: 评价头孢类抗生素中常用的头孢曲松钠 、 头孢噻肟钠和头孢呋辛钠治疗下呼吸道感染的成本 — 效果分析....
After the 1960 s, China began to inoculate BCG, pertussis, diphtheria, tetanus, measles and poliomyelitis vaccines.六十年代后, 中国开始在大、中城市接种卡介苗 、 百日咳 、 白喉 、 破伤风 、 麻疹、脊髓灰质炎的疫苗的工作.Recombinant BCG vaccine is a new type of vaccine...