Definition
衰减 (shuāi jiǎn) means 'to weaken, attenuate, decline in intensity' and is the most technical, scientific term among these siblings. It is used for signals, energy, or measurable quantities that gradually lose strength over distance or time — unlike 减弱 (jiǎn ruò), which is a general 'weaken' for anything, or 衰退 (shuāi tuì), which refers to long-term decline in health, memory, or the economy.
verb
to weakento attenuateto decline in intensity or strength
Examples
- ，衰减。Suízhe jùlí zēngjiā, xìnhào huì zhújiàn shuāi jiǎn.As the distance increases, the signal will gradually attenuate.
- 衰减。Jīngjì shuāituì de jìxiàng yǐjīng kāishǐ shuāi jiǎn.The signs of economic recession have already begun to weaken.
- ，衰减。Suízhe niánlíng zēngzhǎng, tā de tǐlì míngxiǎn shuāi jiǎn le.As he ages, his physical strength has noticeably declined.
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