保护现场

keep the scene intact

来到现场

arrive at the scene

在现场维持秩序

maintain order at the scene

不在现场

not be at the scene

证明自己当时不在现场。

Prove one was not at the scene at the time.

深入现场

penetrate the site

现场参观

site visit

现场直播

broadcast live

现场勘察

site survey

现场交易

live trading

现场会议

on-site meeting

开现场会议

hold an on-site meeting

围堰决口，河水涌进施工现场。

River water poured onto the construction site through the breach in the cofferdam.

在学农基地进行现场教学

carry out on-the-job teaching at an agricultural study base