Ddst
[医][=Denver Development Screening Test]丹佛发育筛选测验：鉴定儿童发育迟缓的测验
🗣️ 情景例句
He's busy preparing for class.
他忙着准备功课。
Don't bother your father now, he is very tired.
现在别拿这个去烦你爸，他很累了。
It doesn't make any sense to get up so early.
那么早起来没有任何意义。