Maintenance prevention
[化] 安全措施; 安全设施
🧩 词语组成解析
🗣️ 情景例句
And it wasn't just ice cream, was it?
这惊喜还不仅是冰淇淋， 对吗?
He is planning his future already.
他已经在为将来做打算了。
On his arrival he was sold to a farmer and worked in the fields.
一到美国，他就被卖给了一个农场主，到地里干活。