Xenoantigen
n. [生]异种抗原
🗣️ 情景例句
Really?
真的吗？
You cannot make a crab walk straight.
江山易改，本性难移。
Now that a tunnel ahs been built through the mountains, the Pass is less dangerous,
如今由于山里开挖了隧道，翻越山口已不那么危险了。