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
Well, I'll admit the room is uncomfortable.
嗯 我承认这个房间很不舒服。
I didn't notice you were wearing your new hat.
我没注意你戴了新帽子。
Is that a car?
那是一辆小汽车吗？