1 PHRASAL VERB-ERG (使)磨损;(使)用坏 When something wears out or when you wear it out, it is used so much that it becomes thin or weak and unable to be used any more. (使)磨损;(使)用坏
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Every time she consulted her watch, she wondered if the batteries were wearing out. [VERB PREP.]
每次她看手表，都会怀疑是不是电池没电了。
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Horses used for long-distance riding tend to wear their shoes out more quickly. [VERB noun PREP.]
用于长途跋涉的马更容易磨破铁掌。
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He wore out his shoes wandering around Mexico City. [VERB PREP. noun]
他在墨西哥城到处游荡，磨坏了鞋子。
SYN erode, go through, consume, use up
2 PHRASAL VERB 使精疲力竭;使疲乏 If something wears you out, it makes you feel extremely tired. 使精疲力竭;使疲乏 [informal]
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The past few days had really worn him out. [VERB noun PREP.]
过去的几天真把他给累坏了。
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The young people run around kicking a ball, wearing themselves out.
年轻人跑来跑去踢着球，把自己弄得精疲力竭。
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The effect of the continuous attacks has been to wear out his troops. [VERB PREP. noun]
接连不断的攻击就是要拖垮他的军队。
SYN exhaust, tire, fatigue, weary
3 PHRASAL VERB-ERG （使）（感觉等）逐渐消失 If someone wears out their welcome with you, or if it wears out, they spend a lot of time with you and you are no longer happy about it. You can also say that a feeling wears out or is worn out. （使）（感觉等）逐渐消失 [Also VERB n PREPOSITION]
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'Could you not stay with us while you are solving your mystery?' — 'Oh, we don't want to wear out our welcome.'. [VERB PREP. noun (not pronoun)]
“如果你们有事要忙就不用陪我们了，好么？”—“哦，我们可不想不受欢迎。”
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His stubborn resistance to anything new eventually wore out the patience of his superiors. [VERB PREP. noun (not pronoun)]
他始终不愿接受任何新事物，最终让上司失去了耐心。
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No matter how often they turn up, their welcome never wears out. [VERB PREP.]
不管他们多久露面一次，都永远那么受欢迎。