Stern also studies and observes the behaviour of babies.斯特恩还研究观察婴儿的行为。He observes carefully but says little.他总是仔细观察,很少说话.He observes keenly but says very little.他观察敏锐,却很少发言....
Stern also studies and observes the behaviour of babies.斯特恩还研究观察婴儿的行为。He observes carefully but says little.他总是仔细观察,很少说话.He observes keenly but says very little.他观察敏锐,却很少发言.Diana, invisible, observes Actaeon in the thick...