give off (a liquid, light, smell, or quality)
倾出,溢出,发出(液体,光,气味);散发出;流露出。
[no obj.]talk in an unrestrained, excited manner
热情洋溢地说,滔滔不绝地说
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this was the type of material that they effused about .这就是他们兴奋地谈论过的那种材料。
"late Middle English: from Latin