1. I was sitting on thorns.
    我如坐針氈。
    ?sit on thorns 如坐針氈，焦急不安，坐臥不寧
    2. The years have mellowed me.
    歲月讓我成熟。
    3. You can’t welch on your promises.
    你不能說話不算數啊。
    ?welch on 賴賬;不履行(諾言、義務)
    e.g. He left the town in order to welch on all his debts. 他為了賴賬離開了這座城鎮(zhèn)。
    4. Evil deeds are done in the name of good.
    多少惡行打著正義的旗號!
    ?evil deeds 邪惡的行為;邪行
    5. We fear for your safety.
    我們擔心你的安全。
    ?fear for 為……擔心，為……擔憂
    e.g. All mothers fear for their children when they first leave home. 所有的母親都為初次出門的孩子們擔憂。
    for fear 由于害怕，以免
    >>詞序不同，意思不同<<
    6. That’s his express purpose.
    他明顯為了這個。
    7. You go. I’ll stick around.
    你走吧。我再呆會兒。
    ?stick around 逗留;在附近徘徊;呆在原處(等待)
    e.g. We'd love you to stick around for dinner. 我們想留你吃晚飯。
    例句出自>>迪斯尼動畫英語《獅子王》：我要一份幼獅三明治<<
    8. I’m not being facetious.
    我不是故意打岔。
    9. Get your second wind!
    重整旗鼓!
    ?second wind 喘氣后恢復正常的呼吸;恢復元氣
    e.g. We can go on after your guys get a second wind. 你們休息一下，體力恢復后，咱們繼續(xù)吧。
    10. She glossed it over.
    那事她一帶而過。
    ?gloss over 掩蓋，掩飾，粉飾
    e.g. One should not gloss over one's shortcomings. 不要隱諱自己的缺點。