Immunotolerance
免疫耐受性, 免疫反应迟钝
🗣️ 情景例句
He's something!
他真了不起！
I'm afraid she's not here.
很抱歉，她不在。
So archaeologists have neither history nor legends to help them to find out where the first 'modern men' came from.
于是，考古学家们既缺乏历史记载，又无口头传说来帮助他们弄清最早的“现代人”是从哪里来的。