tugs
A tug is a strong quick pull on something.
I felt a tug at my sleeve.
我感觉我的袖子被拽了一下。
A tug or a tug boat is a small powerful boat which pulls large ships, usually when they come into a port.
a 76,000-ton barge pulled by five tug boats.
被5艘拖船拖拉着的一艘76000吨的驳船。
tugs , tugging , tugged
If you tug something or tug at it, you give it a quick and usually strong pull.
A little boy came running up and tugged at his sleeve excitedly.
一个小男孩跑了过来,兴奋地拽着他的袖子。