tare mass of freight container

例句：

1. 1. The cargo ship was carrying a heavy load of goods.
   这艘货船正运送着沉重的货物。
2. 2. The weight of the car is 2 tons.
   这辆车的重量是2吨。
3. 3. The farmer had to carry a heavy load of grain to market.
   农民不得不扛着沉重的谷物去市场。