rear foot的用法和樣例:
例句
- As the front foot slipped, the rear foot became unsteady.
前腳一滑,後腳也站不穩。
- When he swims, a beaver holds his unwebbed front feet up close to his body, and pushes out with his webbed rear ones.
當它游泳時將無蹼的前腳收起緊靠軀體,伸出有蹼的後腳奮力推進。
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