小狗用力拽着绳子想挣脱。

The puppy kept ___tugging at the leash trying to break free.

那艘小拖船正把大油轮拉进港口。

The small ___tug is pulling the large tanker into the harbor.

每次听到那首歌，她都会感到一阵强烈的情感拉扯。

Every time she hears that song, she feels a strong emotional ___tug.