pony wheel的用法和樣例：
例句
- The small wheel base is classified as state-level training base for access to BMX World Championships and the right to host the Olympic Games qualifier.
其中，小輪車訓練基地被列為國家級基地，獲得小輪車世錦賽暨奧運會預選賽主辦權。 - Rewinding for different width ,and the unleveled materials can be winded levelly only by adjusting the guide wheel.
復卷不同寬度，只需調整校正導輪，即可將不平整材料校正達到平整收卷。
