For PE permissions, the user can do any changes in PE, to prevent others into your PE, encryption!
因PE的权限极高，用户可以在PE里面做任何改动，以防其他人进入你的PE，建议加密！
The new round of PE curriculum reform has brought limitless vitality to PE teaching in schools, as well as many profound and delightful changes.
新一轮体育课改为学校体育教学带来了无限生机，带来了许多深刻而可喜的变化。
To study the present state of misdiagnosed pulmonary embolism (PE) in China, and to understand the changes happening of PE misdiagnosis at present in China.
目的研究中国目前阶段肺动脉栓塞(PE)误诊状况，旨在调查我国目前PE误诊状况发生的变化。
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