全文听写，英式拼法 450)=450"> [color=#408080]HINTS 第一句有一处破折号 -- Mark Philip [/color]
Koalas only eat gum leaves and drink no water -- the Aboriginal word koala means "no water". But of the 500 eucalyptus species, koalas eat only about 13. The koala's digestive system enables it to survive on a diet of gum leaves which consist largely of fibre with a very low protein content. An adult koala eats around one kilo of leaves each day. In the wild it is thought that the koala lives for about ten years, although koalas in zoos may live for 20 years. The fully grown female koala measures about 60 centimetres. Males are bigger, measuring about 80 centimetres and weighs 13.5 kilograms. The koala has two "thumbs" on each forepaw, opposed to three "fingers". In climbing, it grips mainly with these, and uses its rear paws for a toe-hold in a swift "jumping" action. It seems that koala may not always have looked as they do today. A recent discovered fossil jawbone indicates an animal almost twice the size of today's typical koala. Also it may have kept to the ground and even knocked over small trees. Thank you Mark. It's an interesting talk. Koala is my favourite animal. It's lovely and cute. Philip, now it's your turn.
考拉只吃树叶，而且不喝水——原住民语言里考拉就是“没水”的意思。但是500种桉树中，考拉只吃大约13种。考拉的消化系统使得它们可以只吃高纤维低蛋白的树叶就可以生存。成年考拉每天大概要吃一公斤树叶。一般认为野生的考拉的寿命是十年左右，但动物园的考拉能活到二十年。完全成熟的雌性考拉约60厘米高。雄性比雌性体型大，大约有80厘米高，重13.5公斤。考拉每个前爪上有两个“拇指”，与此相对的是三个“其他手指”。爬树的时候，主要就是用这些手指，后爪是用来在“跳”的时候支撑的。考拉似乎不是一直长成我们现在看到这个样子的。一块最近发现的下颚骨化石表明，以前存在一种有现在两个考拉那么大的动物，而且他们可能在地上生活，甚至能撞倒小树。 谢谢mark。你的演讲非常有趣。考拉是我最喜欢的动物，他们太可爱了。philip，该你了。 ——by vincit 欢迎讨论