单相思、暗恋

　　1. unrequited [,ʌnrɪ'kwaɪtɪd] love 无回报的的爱，即单恋

　　Forget your unrequited love!

　　放手吧!

　　2. one-sided love 单边恋爱，即单恋

　　I fell in one-sided love with him.

　　我陷入了对他的单相思中。

　　3. Lovesick adj. 害上单相思的

　　Love is too heavy, it's hard to move, Love is too deep, it is difficult to come true, Lovesick, heart for love!

　　爱太重，很难再移动。情太深，反而难成真。为爱所困，为爱而心碎!

　　4. one-way love 单行的爱，即单恋

　　I think you've found a love, one sided/one-way love.

　　我想你这是单相思罢了.

　　5. carry a torch for (sb/sth). 单恋某人

　　Love is a two-way emotion, and carry a torch for a person cannot make two people happy.

　　爱是双向的情感，仅仅是单相思不能让两个人都快乐。

　　早恋

　　1. puppy love这是最常用的表达，可以表示早恋，有时也表示初恋

　　I had my puppy love in the university.

　　我的初恋在大学时代。

　　2. fall in love at an early age 比较直译的表达早恋

　　Have your parents ever fallen in love at an early age? What's their attitude towards this problem?

　　早恋被父母发现过吗。他们的态度如何?

　　初恋

　　First love 想必大家最熟悉，但也很重要

　　There's only one year of their first love, as they're getting through, they decide to separate from each other.

　　他们的初恋只维持了一年，双方加深了解后，便决定分手了。