He has been lacking in energy for some time.

他感到虚弱有段时间了。

youdao

A standard OS would also help researchers focus on a key aspect that so far has been lacking in robotics: reproducibility.

一套标准操作系统也能帮助研究者将精力集中于目前机器人技术欠缺的一个关键方面，即重现性。

youdao

From a security features perspective, the capability most lacking in UDDI has been the ability to determine the veracity of data in a registry.

从安全性功能的角度来看，UDDI中最缺乏的这个功能已经成了确定注册中心内数据的正确性的功能。

youdao

To argue this takes political backbone, which has been lacking in Washington and Brussels of late.

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The humid conditions that spread rust most readily have recently been lacking in most places.

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The fact that this narrative has been lacking in recent years has been troubling.

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