外来wàiláiforeign; external; from outsideHSK 6PronunciationwàiláiExample sentence外来物种对本地生态系统造成了严重威胁。Wàilái wùzhǒng duì běndì shēngtài xìtǒng zàochéng le yánzhòng wēixié.Foreign species pose a serious threat to the local ecosystem.Read and choose an answerOne fixed sampleExplore a sample