Immunoselection
免疫选择法
🗣️ 情景例句
One piece of advice.
给你一句忠告。
When I left, he was at home.
当我离开的时候，他回家了。
Ours is a fairly new country, so our cities and towns are modern.
我们的国家是个很新的国家，所以我们的城镇很现代化。