- tug
 - [tʌɡ]
 - n. 拖船;拖曳;苦干
vi. 用力拉;竞争;努力做
vt. 用力拉;较量;用拖船拖 
参考例子
           - 1.The boy tugged at his mother's hand.
 - 男孩用力拉着妈妈的手。
 
- 2.To pull or drag forcibly; tug.
 - 那部电影演得拖拖拉拉。
 
- 3.Fault of the tug in saving or attempting to save life or property at sea.
 - 拖轮在海上救助或者企图救助人命或者财产时的过失。
 
英文解释
           - n.
 - 1.a sudden abrupt pull
 - 2.a powerful small boat designed to pull or push larger ships
 
- v.
 - 1.pull hard
 - 2.strive and make an effort to reach a goal
 - 3.tow (a vessel) with a tug
 - 4.carry with difficulty
 - 5.move by pulling hard
 - 6.pull or strain hard at
 - 7.struggle in opposition
 
网络释义
               - Tug
 - 一种可在机场找到的飞机拖拉车; 拖船; 拖轮; 小型牵引机;
 
- river tug
 - 内河拖轮; 内河拖船内河拖轮; 内河拖船;
 
- berthing tug
 - 靠泊拖船; 港作拖船; 靠泊用拖轮; 移泊拖船移泊拖轮靠泊拖船;
 
- icebreaking tug
 - 破冰拖轮;
 
- large tug
 - 大型拖船; 大型拖船大型拖轮;