Cold-calling
冷不防打电话推销, 冷不防上门推销
🧩 词语组成解析
cold
[kold]
adj. 寒冷的;冷淡的，无情的;失去知觉的;[艺]有冷感的，冷色的;
n. 寒冷;感冒，伤风;
adv. 完全地;
calling
['kɔ:liŋ]
n. 呼喊;（从事某职业或活动的）欲望;职业;邀请;
v. 叫( call的现在分词);通电话;认为;估计;
🗣️ 情景例句
Oh, Grandpa!
啊，爷爷！
How did you decide that product was safe?
你怎样决定产品是安全的呢？
Mr. Smith taught English at a school.
史密斯先生在一所学校教英语。