The old male is tracking a herd. 年老的公豹在追踪一群山羊
tracking her prey is easy. 追踪猎物对它来说易如反掌
been tracking your little secretary/mascot. 我们一直在跟踪你们的小秘书兼吉祥物
Tracking the movement of the tagged dolphins 追踪受标记河豚的动向