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，可以收听真人发音 
小测验：选择正确的单词
- 论坛新贴
sill [sil]
基本释义
- n. 基石;基木;门槛;窗台
参考例句
- She neatly aligned the flower pots on the window sill.
她把花盆整齐地排成一行在窗台上。 - That government sill didn't answer their hopes.
那个政府仍不符合他们的希望。
- She neatly aligned the flower pots on the window sill.
英英解释
2个名词解释
- structural member consisting of a continuous horizontal timber forming the lowest member of a framework or supporting structure
- (geology) a flat (usually horizontal) mass of igneous rock between two layers of older sedimentary rock