1. It´s a pleasant dream but everything depends on ´if´!
    这是个美好的梦，但一切都取决于"如果"！

2. It´s very pleasant.
    气候非常宜人。

3. I found him pleasant and considerate and his personal touch made our association agreeable.
    我发现他友善而且很体谅他人，他本人的风格使我们的交往很愉快。

4. Which though pleasant, take longer -- especially given our traffic-filled streets.
    虽然面对面接触令人愉快，但却要化更多的时间, 尤其是在马路上交通拥挤时。