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忽然发出一声巨响，还冒出一股烟。
All of a sudden there was a terrific bang and a flash of smoke.
《柯林斯英汉双解大词典》
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一只狗忽然嚎叫起来，对月长嗥。
A dog suddenly howled, baying at the moon.
《柯林斯英汉双解大词典》
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他父亲的面容忽然变得温柔而悲伤。
His father's face looked suddenly soft and sorrowful.
《柯林斯英汉双解大词典》
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我忽然感到无法言说的压抑。
I suddenly felt unutterably depressed.
《柯林斯英汉双解大词典》
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我独自一人时，这些人忽然向我走来。
I was by myself and these guys suddenly came towards me.
《柯林斯英汉双解大词典》
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忽然间工作让我觉得自己在做一些杂事。
Suddenly work makes me feel like I am doing a chore.
youdao
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他的记忆力忽然恢复了。
Suddenly his memory returned.
youdao
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于是她忽然不见了。
Then she disappeared suddenly.
youdao
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树忽然就断了。
The trees snapped suddenly.
youdao
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她忽然停住了，用焦急的声音说：“啊，我的殿下，你怎么啦？”
She stopped suddenly, and said in a distressed voice, "Oh, what aileth thee, my lord?"
youdao
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youdao
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临近傍晚的时候，他忽然在一棵很高的山毛榉树上发现了一只浣熊。
Near evening, he suddenly found a raccoon on a very tall beech tree.
youdao
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忽然我们前面的队伍停了下来。
Abruptly the group ahead of us came to a standstill.
《柯林斯英汉双解大词典》
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我在静静地看书，忽然电话铃响了。
I was having a quiet read when the phone rang.
《牛津词典》
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忽然，她的电话响了。
Suddenly her phone rings.
youdao
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午夜时他忽然来了。
He cast up towards midnight.
youdao
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那车忽然向后退，因为那男人之前给车挂了倒车档。
The car shot backward because that man had left it in reverse.
youdao
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现在小杜克已经不躺在床上了，他忽然骑上了一匹马。
Little Tuk was no longer lying down: all at once he was on horseback.
youdao
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她双手忽然出满了皮疹。
Her hands have broken out in a rash.
《新英汉大辞典》
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他忽然破口大骂。
He broke out into curses.
《新英汉大辞典》
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在那时，她忽然注意到了钟表。
Then, suddenly she noticed the clock.
youdao
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这条狗忽然把耳朵竖起来。
The dog cocked its ears suddenly.
youdao
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忽然他听到上方传来一阵惊叫声。
All of a sudden he heard a cry above him.
youdao
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忽然，他们听见有人在吹小号。
Suddenly, they heard someone playing trumpet.
youdao
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随后，这一理论的进展忽然停滞了。
Then progress with the theory suddenly halted.
youdao
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忽然，那块布从鸟笼上掉到了地上。
Suddenly, the cloth fell from the cage and onto the floor.
youdao
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这时一团乌云忽然遮住了太阳。
This coincided with a black cloud which suddenly veiled the sun.
youdao
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忽然他听见有人轻轻扣窗子。
Suddenly he heard someone knocking gently on the window.
youdao
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忽然，房门被推开了，我边看边尖叫。
Suddenly, the front door swung open. I looked up and screamed.
youdao
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过了一会，忽然，灵感来了。
Then suddenly, it came to me.
youdao