Single-tuned amplifier

single ['sɪŋɡl]

adj. 单一的;（打斗、比赛等）一对一的;惟一的;适于一人的; n. 单程票;（旅馆等的）单人房间;[复数]（高尔夫球一对一的）二人对抗赛;[常用复数][美国、加拿大英语]未婚（或单身）男子（或女子）; vt. 挑选; vi. 作一垒手;

tuned

[计] 调谐的

amplifier ['æmplɪfaɪɚ]

n. 扩音器;放大器;扩大的人;详述者;

ampli=amplify扩音+fier人或物 →扩音器

Well, if they're not,

噢， 假如店不开的话，

Be careful whom you appoint to the position of manager.

你该当心你所任命的那个经理。

Being a good listener means much more than just listening with ears. Eyes mean that I should look at you while you are speaking as a sign of respect. In other words I should not watch TV, or look over your shoulder at other people while we are talking

作一名好的倾听者，决不只是“用耳朵听”。“目”字的意思是，你说话时我应当看着你，这是尊重对方的表现。换句话说，当我们在一起谈话时，我不应当看电视，也不应当越过你的肩膀瞅着别人。