Accustomed to seeing As and Bs on high school report cards, they may be upset when their children's first-semester college grades are below that level.
他们习惯于在孩子的高中成绩单上看到 A 和 B，所以当他们的孩子大学第一学期的成绩低于这个水平时，他们可能会感到不安。
2
This is my report: One of the major problems in the Biramichi river is that the level of oxygen in the water is too low.
这是我的报告：比拉密契河的主要问题之一是水中的氧气含量太低。
3
Accustomed to seeing As and Bs on high school report cards, they may be upset when their children's first semester college grades are below that level.
他们习惯于在孩子的高中成绩单上看到 A 和 B，所以当他们的孩子大学第一学期的成绩低于这个水平时，他们可能会感到不安。