We can build up the speed gradually and safely.我们可以逐渐稳妥地提高速度。Deposits of plaque build up between the tooth and the gum.牙齿和牙龈之间会滋生牙斑。Exercise in pregnancy can build up your strength and suppleness.孕期锻炼身体可以增强体力和柔韧性。...
We always go to the park on weekends and play Frisbee.我们每个周末都会到公园玩飞盘.Can Tom play Frisbee? Yes, he can ( play Frisbee ).汤姆会玩飞盘 吗 ?是的, 他会玩飞盘.Message forum covering various topics in ultimate frisbee. Also has regional sec...