Carbon content
[建] 碳含量
🧩 词语组成解析
🗣️ 情景例句
If you don't know a person's last name, use 'ma'am' or 'sir'.
如果你不知道一人的姓， 你应称呼他为 'ma'am' 或 'sir' 。
Please fill in this disembarkation card.
请你填写这张入境卡。
Look! There's Meimei! She's very strong. She's lifting that ladder.
瞧！梅梅在那儿。她很强壮。她举着把梯子。