Immunogen
n. 免疫原
🗣️ 情景例句
You do. You do. There's a book here.
当然 ，当然。书要出版。
Therefore, having a basic knowledge of business.
因此，懂得一些商务和贸易的英语术语。
The World Trade Center, an office building for over 1200 firms employing about 50,000 people, is even higher at 411 metres.
世界贸易中心要高得多，有411米。它是一座办公大楼，楼里有1，200多家公司，大约有5万雇员。