A fixed medium two-shot of two original adult cartoon travelers at a quiet station. A, wearing a teal jacket on the left, speaks first in Mandarin Chinese: “下一站，我们去看海。” A finishes completely. Then B, wearing an orange coat on the right, replies in English: “Great. I packed the map.” Only these exact two lines, no narrator, no music, no extra dialogue. Natural turn taking and matching mouth movement. Keep both character identities stable. Generate native dialogue audio with the video.