to forget / (auxiliary verb, after the continuative form of a verb) to forget to …

please give me / (polite, imperative) please do something for me; expressing a request

fashion, vogue / prevalence (of disease)

become epidemic, go around / become fashionable

(medicine) avian flu, bird flu, avian influenza

swine flu

"mask life": daily wearing of masks under the COVID-19 pandemic

woman who is more beautiful when wearing a face mask

Please have a seat. / Please sit down.

Please wait