請告訴我 「效果減弱」 的英語！

・be wearing off
・less effective

【be wearing off】= "wear off"，表示效果逐漸消失。"be wearing off"　形成了「效果正在逐漸減弱」的含義。

【less effective】= "effective"= 有效的，加上"less"，表示效果減少了或變弱了。


例句

我上次接種疫苗是大約六個月前，所以我認為它的有效性已經減弱。

・ I think the effect is wearing off since the last vaccination was about 6 months ago.

・ Since the last vaccination was given about 6 months ago, I think it is becoming less effective.

有幫助｜0