Ccfa
[医][=cancer cytology foundation of america]美国癌细胞学基金会
🗣️ 情景例句
and the towels with the teddy bears on them?
和泰迪熊毛巾吗？
Money spent on the brain is never spent in vain.
智力投资，决非虚掷。
This would solve the problem of ventilation, for if a train entered this tunnel, it would draw in fresh air behind it.
因为如果有列火车开进隧道，它就把新鲜空气随之抽进了隧道。