Pinyin: píng jǐng

Meaning：bottleneck

Sentence: This is just the origin of bottleneck problems of current search engine.

这正是现今搜索引擎瓶颈的源头。

More: 

瓶： 

Pinyin: xué
Meaning: píng
Radical: 瓦
Stokes: 10
Traditional: 瓶
Common words/Phrase:
瓶颈  [píng jǐng]      【bottle neck】 

瓶口  [píng kǒu]      【bottleneck】 
瓶子  [píng zi]        【bottle】

颈：