他为这个小女孩深感悲哀。He felt a great sadness for this little girl.令人悲哀的是，他的国际职业生涯竟如此惨淡收场。It was sad that his international career should end in such anticlimax.公共场所的肮脏污秽让我感到非常悲哀。I find public squalor very saddening....
The quilt has pretty, scalloped edges and intricate quilting.这条被子有漂亮的荷叶饰边，而且绗缝活做得也很精致。Mary saved up pieces of cloth to make a quilt.玛丽存了几块布留作棉被用.The design on this quilt cover is quite elegant.这被面的花儿很大方....
Some acids are strong enough to burn the wood.有些酸的酸性强得可以烧坏木头.There are many amino acids that the body cannot synthesise itself.有许多种氨基酸人体自身不能合成.How do acids react on metals?酸对金属会起什么样的化学反应?...