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1·The crisis has led to the closure of a number of nonessential government services.

这场危机已导致了一些可有可无政府服务设施的关闭。《柯林斯英汉双解大词典》

2·About 9% attempted to conceal nonessential Internet use, and nearly 4% reported feeling preoccupied by the Internet when offline.

约有9%的人试图隐瞒自己“非必要的上网行为”，近4%的人报告说，他们“离线时也感觉被网络占据着大脑”。

3·Avoid nonessential tasks.

避免不重要的任务。

4·Healthy nonessential workers were told to go home.

医疗辅助人员们被告知回家。

5·The nonessential amino acids were markedly reduced.

这两个氨基酸从丙酮酸获得它们的碳架。

6·Uninstall nonessential programs and remove temporary files.

卸载不重要的程序并删除临时文件。

7·Free up the memory in use by closing any nonessential applications.

关闭所有不重要的应用程序，释放正在使用的内存。

8·Throw out nonessential Numbers. This includes age, weight and height.

别理会那些不重要的数字，包括年龄，体重，身高。

9·Glutamine and nonessential amino acids do no need to add superfluity.

在培养基中不需要额外添加谷氨酰胺和非必需氨基酸。

10·I thought that I later wedding ceremony is nonessential is too special.

我想我以后的婚礼不必要太特殊。