1. 沮丧的：heartsease 内心平静 | heartsick 沮丧的 | heat 热

2. 悲痛的：heartsease 心平气和 | heartsick 悲痛的 | heartsore 悲痛的

3. 心酸酸：09. 採茶歌 Picking Tea Leaves | 10. 心酸酸 Heartsick | 11. 丟丟銅仔 Clinking Coins

4. 悲痛的; 苦恼的 (形)：heartrending 令人心碎的, 伤心的, 悲惨的 (形) | heartsick 悲痛的; 苦恼的 (形) | heartsore 悲痛的; 苦恼的 (形)

adj

1. without or almost without hope

e.g. despondent about his failure
too heartsick to fight back

Synonym: despondent

2. full of sorrow

Synonym: brokenheartedheartbroken