there are two apple in the ground.
在地上有两个苹果。
there are 有；可数名词的复数形式
例句：
1.There are at least three ways out of that difficulty.
解决这个问题至少有三种方法。
2.There are great dangers in trying to dish this sort of dose up with jam for thepatient.
如果要想把这种药物加上果酱一齐给病人吃，那是非常危险的。
3.There are two approaches to the question of the rise velocity of bubbles in astagnant liquid.
对于在静止液相中气泡的上升速度问题有两种处理方法。
4.It is not easy to see that there are triangle-free graphs of large chromaticnumber.
很不容易看出这里是否存在色数很大而没有三角形的图。
5.Finally there are to be noted the austere prose statements and arguments ofthe scientific literature as it was written by Aristotle.
最后要提到的是，亚里士多德所写的有关科学文献中严格的、散文式的陈述和论证。