Bubbles in the sun, such as crystal-clear, a symbol of the purity of childhood, carefree.

在阳光下泡泡如水晶般剔透，象征着童年的纯洁无忧无虑。

youdao

Open the purge valve until the water flows clear and free of bubbles.

打开排气阀，直到水流清澈没有气泡。

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To do a clear investigation of the microscopic process of the particles interact with bubbles, is the momentous foundation of flotation equipment design and flow-sheet design.

充分弄清矿粒与气泡间相互作用的各种微观过程，是进行浮选设备和流程设计的重要基础。

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The evidence is clear that the clean-up costs after debt-financed bubbles are too high.

ECONOMIST: Buttonwood

It is therefore not clear why the Fed should enter the business of "managing" bubbles.

FORBES: Should The Fed Pop Bubbles?