safe logic assembly

例句：

1. 1. The new car is very safe for young drivers.
   这款新车对年轻司机来说非常安全。
2. 2. The house is safe from theft.
   这所房子从盗窃中是安全的。
3. 3. We should always be safe when crossing the road.
   过马路时我们总是应该小心，确保安全。