1590s, "side of a ship" (technically, "the side of a ship above the water, between the bow and the quarter"), from broad (adj.) + side (n.); thus "the artillery on one side of a ship all fired off at once" (1590s, with figurative extensions). Two words until late 18c. Of things other than ships, 1630s. But oldest-recorded sense in English is "sheet of paper printed only on one side" (1570s).
权威例句
1. The ship was moored broadside to the pier.
这艘船横泊在码头旁。
2. The prime minister fired a broadside at his critics.
首相对批评他的人进行了猛烈反击。
3. She delivered a broadside against government policies.
她对政府的政策进行了猛烈抨击.
4. The Social Democratic leader launched a broadside against both monetary and political union.