复数： tightropes

China 's financial system is still walking a tightrope .

中国的金融体系仍在走钢丝绳。

The drums rolled as the acrobat walked along the tightrope .

杂技演员走在钢索上时，鼓咚咚地敲着。

I am learning to walk the tightrope .

我正在学走绷索。

The children are breathless as they watch the tightrope act .

孩子们在看走绳索表演时呼吸都屏住了。

China must walk a tightrope .

中国必须走好钢丝绳。