be in advance of somebody/somethingto be more developed or modern than someone or something else 超前于某人/某物;比某事物先进 Their aircraft were in advance of those used by the US. 他们的飞机比美国人用的要先进。
be in advance of somebody/something• In several ways, then, a catalogue may be in advance of any other publications.
→ be in advance of somebody/something at advance1(2)