Toxoidum diphthericum
[医] 白喉类毒素
🧩 词语组成解析
[医] 类毒素
🗣️ 情景例句
You can listen to BBC or VOA news if you want to improve your listening.
如果你想提高听力，你可以听英国广播电台或美国之音的新闻节目。
Our product is lower priced than the competition.
我们产品价格低廉，具有竞争力。
I went downstairs and sat in front of the television pretending to read.
便来到楼下坐在电视机前假装看书。