例句:

　　The scientists said that about half of the coral species were new to them.

　　科學(xué)家們說(shuō)大概超過(guò)一半的珊瑚物種對他們來(lái)說(shuō)都是新的。

　　It is called balck coral because of its balck skeleton, but its spines can be very bright colours.

　　被稱(chēng)為黑珊瑚是因為它黑色的骨架，但是它的脊椎卻可能是非常鮮艷的。