The islands lie at the southern end of the Kurile chain.这些岛屿位于千岛群岛的南端。Yemen commands the strait at the southern end of the Red Sea.也门完全控制着红海南端的海峡。Antarctic air brought biting cold to southern Chile on Thursday.周四，南极气流给智利...
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....