掉队

掉队	diào duì	to fall behind / to drop out
掉	diào	to fall / to drop / to lag behind / to lose / to go missing / to reduce / fall (in prices) / to lose (value, weight etc) / to wag / to swing / to turn / to change / to exchange / to swap / to show off / to shed (hair) / (used after certain verbs to express completion, fulfillment, removal etc)
队	duì	squadron / team / group / CL:个