touch-and-go

['tʌtʃən'gəu]

adj. 危险的, 惊险的, 一触即发的, 无把握的
n. 飞机落地即起飞

例句与用法：

The patient is out of danger now, but it was touch-and-go (ie uncertain whether he would survive) for a while.

病人现已脱离危险，但曾有一度吉凶未卜。

It was touch-and-go whether we would get to the airport in time.

我们是否能按时到机场还很难说。

详细释义：

a.

1. 危急的, 危险的, 一触即发的; 不确定的

2. 简略的; 草率的