1、She gave a sudden laa of the siren and I realized that we'd reached the hospital at last.
她突然按鸣笛按钮了，我意识到我们终于到达了医院。
2、He laa the dog closer with a gentle tug on the leash.
他用一下轻轻地拉了一下狗的链子，把它拉得更近了。