As an example of the latter point, he notes growing efforts at major universities to tighten grading standards and restore failing grades.

作为后一点的例子，他注意到各大大学在收紧评分标准和恢复不及格成绩方面的努力越来越大。

youdao

In some schools they have abolished failing grades; they'll give you as many times as you want to get the right answer.

在某些学校已经废除不及格分；只要你想找到正确答案，学校就会给你无数的机会。

youdao

How could I convince his father and mother that his recent failing grades represented a brokenhearted child's reaction to his adored parents' separation and pending divorce?

我怎能使他的父母相信他近来学习成绩下降是一个心碎的孩子对他敬爱的父母分居和即将离异的反应呢？

youdao

When his mother learned of his failing grades she required her sons to read two library books every week.

VOA: special.2009.09.04

Roosevelt and Hoover had night-and-day differences in personality and political skills, but both deserve failing grades in economics.

FORBES: Fact and Comment

In America, a congressional committee for computer security has given failing grades to many of the federal bodies it scrutinises.

ECONOMIST: Cyberwarfare

The Obama administration gave General Motors and Chrysler failing grades Monday for their turnaround efforts and promised a sweeping overhaul of the troubled companies.

CNN: General Motors CEO resigns as part of bailout deal