Safety protection
[化] 安全防护
🧩 词语组成解析
🗣️ 情景例句
It's mostly young people who take part.
参加活动的绝大多数是年青人。
Last year, he applied to Harvard University for a scholarship and succeeded in passing a difficult examination.
去年，他向哈佛大学申请奖学金并通过了一个很难的考试。
Don't worry about that. Right now you need to stay still until help comes.
别为这事担心。现在，在有人来之前，你必须要呆着不动。