be concerned 的近义词 13 个

• tend
• trouble
• watch
• be cautious
• be on guard
• be solicitous
• be wary
• have a care
• mind one's p's and q's
• take care
• toe the line
• watch one's step
• watch out

be concerned 的反义词 5 个

• disobey
• disregard
• forget
• ignore
• neglect