large opening well

例句：

1. 1. The large opening well is used to extract oil from the ground.
   这个大型开口井用于从地下提取石油。
2. 2.The well was drilled into a large opening in the earth.
   这个井被钻入地球中的一个大型开口。
3. 3. The well is large enough to hold a large amount of water.
   这个井足够大，可以容纳大量的水。