指象功能不正常的心脏一样过分快速且经常是有节奏地搏动；

To palpitate is to pulsate with excessive rapidity and often arrhythmically, as a malfunctioning heart might;

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没有任何一项功能能象安全网一样使团队更具信心。

Nothing like a safety net to make the team more confident.

youdao

逻辑单位象数字代码一样，它自身就是功能单位，[但又]不仅有功能单位的意义。

Logic units are functions themselves and not mere values for functions, as digital bits are.

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