水手们为了平衡重量会把船上像石头、沙砾和土壤之类的压舱物抛下船。
Sailors balanced out the weight by leaving behind their ships' ballast: stones, gravel and soil.
你需要将850克重物放到船上，因为你的船低于标准重量。
You should put 850g weight on the boat, cause your boat is under weight.
湄公河巨型鲶鱼是世界上最大的鱼之一，例如渔夫船上的这条，可以达到10英尺(3米)长，重量超过650磅(300千克)。
One of the largest fish in the world, Mekong giant catfish, such as this one on a fisherman's boat, can reach 10 feet (3 meters) long and weigh up to 650 pounds (300 kilograms).
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