The authors said: 'Numerous popular books advise people not to display their affections too openly to a potential romantic partner and to instead appear choosy and selective.'
几位作者说：“很多畅销书都建议人们不要对一个潜在的恋爱对象过于明显地表露他们的情感，相反，这些书建议人们应该表现得更挑剔一些。”
Such distinctive optical properties as opticity and selective reflection of chiral agent-doped PDLC have widely been applying in the field of light filter, grating, and reflective display, etc.
手性掺杂的聚合物分散液晶的旋光性、选择反射等独特的光学性能被广泛应用于滤波片、光栅、反射显示等方面。
The authors said: 'Numerous popular books advise people not to display their affections too openly to a potential romantic partner and to instead appear choosy and selective.
几位作者说：“很多畅销书都建议人们不要对一个潜在的恋爱对象过于明显地表露他们的情感，相反，这些书建议人们应该表现得更挑剔一些。”
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