Booster injection
[医] 激发注射
🧩 词语组成解析
booster
['bu:stə]
n. （电器的）增压机;助推器，多级火箭的第一级;热情的支持者;
🗣️ 情景例句
Are we ready to go?
我们可以开始了吗？
OK. We have a nonstop flight leaving Kennedy at 9:25.
好的。9点25分有一趟直达班机，从肯尼迪国际机场起飞。
A great many goods were sent to the exhibition from various parts of the world.
大量的商品从世界各地运送到了博览会，