Immunogen
n. 免疫原
🗣️ 情景例句
The world could be heading for an economic recession.
世界也许正在走向经济衰退。
We should require a survey report, so that we may know the extent of the damage.
我们将要求出具检验报告，以便我们能了解损坏的程度。
The aeroplane is flying over the river.
飞机正从河上飞过。