单词 | 底框梁 |
例句 | DEFINITIVE EXAMPLES 权威例句〔sill〕The horizontal member that bears the upright portion of a frame, especially the horizontal member that forms the base of a window.底框梁:框架中支撑垂直部份的水平部件,尤指构成窗台底基的水平部件美国传统 |
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