“感情被懂得”和“等待着被懂得”可以译作动名词的复合结构如下：
sentiment's being undersood;waiting's being understood
其中sentiment's 和 waiting's 都是名词所有格,用作动名词的逻辑主语.
“X1是一种幸福”和“ X2是一种孤独”显而易见是个系表结构,分别译作：
X1 is a kind of happiness.
X2 is a kind of loneliness.
合在一起即：
Sentiment's being undersood is a kind of happiness and waiting's being understood is a kind of loneliness.