be concerned about是什么意思

be concerned about的音标：be concerned about的英式发音音标为：[bi: kən'sɜ:nd ə'baut]be concerned about的美式发音音标为：[bi kən'sənd ə'baʊt]...

This aggression is the real issue the world should be concerned about. We want to keep that in focus.这次侵略才是世界应该关注的真正问题。我们想继续保持关注。One must be concerned about the fate of these pathogens in the absorption field.必须注意到这些病原体在...