trolley

Virus, Invadersと題したビールスに関するリーダーズダイジェスト9月号の記事の冒頭です。
You're pushing the trolley around the supermarket and absentmindedly rub your nose.
この "trolley" は明らかに "shopping cart" の事ですね。 "trolley" は　トロリーバスかトロリー電車だけのものと思っていましたので意外です。　念のために辞書で確認します。
・Merriam-Webster's Online Dictionary: chiefly British : a cart or wheeled stand used for conveying something (as food or books)
・Cambridge Advanced Learner's English Dictionary: UK (US cart) a table on four small wheels with one or more shelves under it which is used for serving food or drinks; Betty almost ran me over with her tea trolley as I was walking into the office!; Every thirty minutes or so the flight attendant would wheel the drinks trolley down the aisle.
どうも英国で使う用法のようです。
冒頭の記事の続きです。
The person who last used the trolley has a cold. On their way down the same aisles, they sneezed and politely covered their mouth with their hand. Within the droplets that flew from their mouth were thousands and thousands of virus particles, which were then deposited on the trolley handle.
と言う訳で、外出したら手をよく洗いましょう。