As such, Perseverance's trusty sidekick Ingenuity was sent in to conduct some preliminary reconnaissance.
因此，毅力号值得信赖的助手聪明号被派去进行一些初步侦察。
英语百科
Preliminary reconnaissance
Preliminary (or pre-D-Day) reconnaissance is the reconnaissance that is used prior to the principal events of any major theater of war or landing force projection. The term is not similar to the initial word -reconnaissance-, as "preliminary reconnaissance" only prescribes the reconnaissance that is being conducted beforehand, and not during, any deployments, military operations, or movement of troops.