Certified mail
[经] 挂号信
🧩 词语组成解析
certified
[['sə:tifaid]]
a. 证明合格的\\n[化] 检定的; 证明的; 书面证明的
mail
[mel]
n. 邮件，邮政;邮政（制度）;邮务员，邮递员;〈古〉袋，旅行包;
vt. 邮寄;给…穿盔甲;
vi. 投邮;
🗣️ 情景例句
How about a California chablis?
来一杯California白葡萄酒好吗？
You had better leave right now.
现在你最好立刻回去。
Now move the hand to and fro and around but not up and down.
然后把手前后左右以及旋转摆动，但不要上下摆动。