A GPRS device, which resembles a modem with an extended at command set, must define a context using an at command before it enters data mode.

GPRS设备类似于拥有扩展AT命令集的调制解调器，在进入数据模式之前必须使用AT命令定义一个上下文。

youdao

At the Lord 's command the Israelites set out, and at his command they encamped.

以色列人遵耶和华的吩咐起行；也遵耶和华的吩咐安营。

youdao

At the Lord 's command they encamped, and at the Lord' s command they set out.

他们遵耶和华的吩咐安营，也遵耶和华的吩咐起行。

youdao

The activities at Cwrt-y-Gollen army camp started with a group attempt at singing, before the men were set tasks including a wood-chopping race and a swamp command exercise using heavy sacks of coal.

BBC: The men had to carry coal sacks during one task