| 例句 |
ballastsnounpl. of ballast heavy material (such as rocks or water) that is put on a ship to make it steady or on a balloon to control its height in the air—often used figurativelyA large amount of ballast kept the boat from capsizing. She provided the ballast the family needed in times of stress. deadweightsburdens, cargoes(or cargos), drafts, freights, hauls, ladings, loadings, loads, payloads, weightsconsignmentsboatloads, carloads, shiploads, trainloads, truckloads, wagonloadsoverloads, surchargesbales, bundles, packages, packets, packs, parcels, shipmentsmanifestsbodies, bulks, masses |