The cell is soft, like a tiny balloon full of juice.

细胞柔软，像充满液汁的小气球。

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I wish I was like a runaway balloon, like a tiny o in the sky, so tiny-tiny you have to close your eyes to see it.

但是我真希望自己是一百零二岁。我希望自己像个落跑的气球，变成天空中一个小小的o，小到你们只有眯起眼睛才看得见。

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Letters were delicately folded into a tiny envelope so as many as possible could fit inside the balloon.

许多书信被精心折叠，放入一个小信封，以使热气球能尽量多装信。

youdao

Using general anesthesia, the surgeon threaded a catheter up her nose, expanded a tiny balloon and cleared a permanent space for her sinuses to drain.

FORBES: Balloon Therapy

This, however, has a tiny balloon at its business end.

ECONOMIST: Medicinal light-swords

The next step was to thread a tiny surgical balloon and a thin stainless-steel stent into the artery to forcibly widen the passage.

CNN: Just How Bad Was It?