Unlike an LU, a Fragment does not necessarily define a logical containment structure or a namespace.

与逻辑单元所不同的是，一个片断并不是必须定义一个逻辑容器结构或者一个名称空间。

youdao

So, for example, English has a phoneme of "Lu," "L," and a phoneme of "R."

例如,英语有"Lu","L" 和"R"的音位

耶鲁公开课 - 心理学导论课程节选

For its Wednesday edition, Ms. Lu's hometown newspaper, the Shenyang Evening News, filled its front page with pictures of the bombing, including a photo of Ms. Lu, a slight girl with shoulder-length hair.

WSJ: China Mourns Boston Marathon Victim

Just hours later, Ms. Lu became a victim of the bombing at the Boston Marathon.

WSJ: China Mourns Boston Marathon Victim

Ms. Lu, a graduate student, was from the rust belt city of Shenyang in China's northeast.

WSJ: China Mourns Boston Marathon Victim