Maintenance prevention
[化] 安全措施; 安全设施
🧩 词语组成解析
🗣️ 情景例句
you're going to give me the answer to that question.
是要给我这个问题的答案。
The tour will take about an hour and a half. We ought to be back here by 3:00.
参观大概要一个半小时，3点钟以前回到这里。
There, a child grows up under the ever-present attention of his parents;
荒凉地区的孩子无时无刻不在父母关怀下成长。