let one’s guard down 鬆懈

let one’s guard down
繁:鬆懈
简:松懈

醫學會傳染病顧問委員會聯席主席曾祈殷表示,目前本港採用的新冠病毒疫苗,需要接種兩劑,才能達至疫苗的有效保護作用,提醒市民即使已接種一劑疫苗也不能鬆懈

曾祈殷認為可考慮引入多幾款疫苗讓市民選擇(2021年3月18日)。香港電台,取自 https://news.rthk.hk/rthk/ch/component/k2/1581219-20210318.htm

An infectious diseases expert said on Thursday that people shouldn’t let their guard down after they receive their first dose of Covid-19 vaccine, as it wouldn’t have generated enough protection.

Don’t let your guard down after first jab: expert. (2021, March 18). RTHK. Retrieved from https://news.rthk.hk/rthk/en/component/k2/1581234-20210318.htm