初探的英文：
primary exploration

• Making an approach to the testing of solar PV product
  先进太阳能光伏检测技术初探
• Investigations into the body colour of shrimps living in natural pond
  简沼虾体色调节之初探
• Preliminary Research On Sexual Education Principles For People With Mental Disability
  弱智人士性教育教育原则初探
• Building Community and Parent Participation Model In Special Need Education
  特殊需要教育的家长、社区参与的模式初探——以建华基金会特殊需要教育模式为着眼点

• primary feather
  初级飞羽
• A primary feather of a bird.
  翅前羽鸟的初级飞羽
• The Democratic primary was held this month.
  民主党候选人初选于本月举行。
• These are created by combining the primary.
  这些颜色通过混合原色形成。
• This should be your primary concern!
  这一点是首先需要留心的。

• Investigation is exploring.
  调查就是探索。
• The explorers discovered a natural deposit.
  探险者们发现了一处天然矿床。
• Explorers have to withstand hardships.
  探险者得忍受艰苦。
• He was a great explorer.
  他是一位伟大的探险家。
• He likes to explore the cave.
  他喜欢在山洞里探险。