P-ring structures P型环网结构
p-ring p环
top p ring 顶圈
clamp p ring 夹圈
back-up p ring 背位环
P Pink ring 粉红圈
left maximal P hereditary ring 左极大P遗传环
同义词： praseodymium atomic number 59
同义词： Puerto Rico Porto Rico Commonwealth of Puerto Rico
同义词： public relations
以上来源于: WordNet
People who are trying to maintain separate work and personal lives may even set this to work after they leave the office, only allowing calls from certain groups (like family and close friends) to ring between 6 p.m. and 8 a.m.
WSJ: Not Ready for iPhone 5? Upgrade to iOS 6 Offers Some New Tricks
When we heard the familiar Skype ring at 3:40 p.m.
WSJ: Comparing Santa Video Chats
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