5 sentences

1. 他用指尖轻轻触碰了屏幕。

   tā yòng zhǐ​jiān qīng​qīng chù​pèng le píng​mù.

   He touched the screen lightly with his fingertip.

   Source: Dong Chinese Dictionary

2. 船只在浓雾中不慎触碰到了暗礁。

   chuán​zhī zài nóng​wù zhōng bù​shèn chù​pèng dào le àn​jiāo.

   The ship accidentally hit a submerged reef in the thick fog.

   Source: Dong Chinese Dictionary

3. 身为财务人员，严守职业底线，绝不能触碰红线。

   shēn​wéi cái​wù rén​yuán, yán​shǒu zhí​yè dǐ​xiàn, jué bù​néng chù​pèng hóng​xiàn.

   As a financial professional, one must strictly uphold professional standards and never cross the red line.

   Source: Dong Chinese Dictionary

4. 绝不能触碰法律的红线。

   jué bù néng chù​pèng fǎ​lǜ de hóng​xiàn.

   One must never cross the legal red line.

   Source: Dong Chinese Dictionary

5. 这种触碰法律红线的玩法迟早会出事。

   zhè zhǒng chù​pèng fǎ​lǜ hóng​xiàn de wán​fǎ chí​zǎo huì chū​shì.

   This way of playing close to legal boundaries will lead to trouble sooner or later.

   Source: Dong Chinese Dictionary