垂直着（的）；竖立着（的）：处于垂直或几乎垂直的位置或方向。突然失去垂直的或笔直的位置。
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对弹性半空间上方板在突加荷载及谐和荷载作用下的动力响应进行了时程分析。
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Dynamic plastic response of beams subjected to bending and torsion under suddenly applied load
弯扭联合作用下梁对突加载荷的塑性动力响应
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我很奇怪，我两次接近这个关闭的大门，突然都打开了，阿科向我张望着，但我还是从侧门进去的。
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Suddenly, Aunt Sally thought that I looked sick and told me to hurry upstairs to bed.
突然, 萨莉姆妈感觉到我的脸色不好,就叫我赶快上楼到床上去.
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CLOSE upon the hour of noon the whole village was suddenly electrified with the ghastly news.
临近中午时分,那个可怕的消息使全村人一下子惊呆了.
英汉文学 - 汤姆历险
Suddenly, Mike's dad burst through the rickety screen door and onto the porch.
突然, 迈克的爸爸推开那扇摇摇晃晃的门走进了门廊.
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The moment she was to appear on the stage, she suddenly asked for more reward.
就在她准备出现在舞台上时, 她突然要求更多的报酬.
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And sometimes when you're sound asleep at midnight, suddenly the phone rings!
还有的时候,当你半夜熟睡时, 突然电话铃响了!
魔法英语-口语突破（高中）
All was tranquility and repose. Suddenly into the picture staggered Walter Cronkite.
一切都安谧与恬静. 突然,沃尔特?克朗凯特蹒跚着闯入了画面.
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The quiet of the operating theater was suddenly shattered by a loud oath.
手术室的静寂突然被一句大声的咒骂打破了.
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As thunder pierced the hollow stillness, I looked at Mother and suddenly knew her secret.
隆隆雷声划破空谷中的静寂, 我看着母亲,突然间发现了她的秘密.
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