stratovolcano

stratovolcano的英语例句

1. An aquifer is a water - bearing rock stratum such as sandstone and chalk.

   地下蓄水层是一些有水的岩石层,如沙岩和白垩岩.

2. Such inequalities are found in every stratum.

   这类不公平的现象存在于社会的每一个阶层.

3. It was an enormous task that affected every stratum of society.

   这是一项影响到社会各阶层的重大工作。