I was just in a hurry.

我只是赶时间。

I arrived just in time to see the visitor.

我及时赶到看到了访客。

The car stopped just in time, but the boy fell off his bike.

汽车恰好及时停了下来，但男孩从自行车上摔了下来。

She got home just in time to change her clothes and muddy her face.

她及时赶回家换了衣服并弄脏了脸。

He caught the train just in time.

他正好赶上了火车。

He boarded the train just in time.

他及时登上了火车。

Take an umbrella just in case it rains.

带上雨伞吧，万一下雨呢。

She always carries tampons in her bag just in case.

她总是随身携带卫生棉条以防万一。

Just-in-time manufacturing helps in minimizing waste.

准时制生产有助于减少浪费。

He always carries an earplug just in case.

他总是随身携带耳塞以防万一。