1. Now it was positively dangerous.
    现在是十分危险了。

2. Hardly anyone can positively enjoy sitting in a train for more than a few hours.
    很少有人能够真正喜欢坐几个小时以上的火车。

3. I dressed for spring and it´s positively arctic here.
    我穿的是春装, 而这儿的天气冷极了。