Ectophylaxination
被动免疫, 外来免疫
🗣️ 情景例句
It will take a few years for the region to recover economically.
这个地区的经济恢复得花几年的时间。
The fox smells his own stink first.
狐狸的臭味道，自己先嗅到。
That sounds very interesting. How long will it take you to collect enough money?
听起来倒是挺有趣的。你要花多长时间才能筹集到足够的资金呢？