crop up

短语词组

短语

• when problems crop up 惹事;出现变故
• crop up on 在
• begin to crop up 露出苗头
• problems may crop up 突然出现的问题
• to crop up 蹦出来
• crop up here and there 层出不穷
• to begin to crop up 冒头
• That crop up for air 为了空气拔地而起;为了氛围拔地而起
• new problems crop up unexpectedly 节外生枝
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