他们发现要掌握一门外语时困难的的英文

• they found if hard to master a foreign language

• "他们"英文翻译    they
• "发现"英文翻译    find; discover
• "要"英文翻译    important; essential
• "掌握"英文翻译    grasp; master; know well
• "一门"英文翻译    a course in a curricuclum; a ...
• "外语"英文翻译    foreign language
• "时"英文翻译    shí]
• "困难"英文翻译    difficulty; difficult; hard; ...
• "的"英文翻译    4次方是 The fourth power of 2 i ...
• "要掌握一门外语是不容易的。" 英文翻译 :    it is not easy to master a foreign language
• "她借助语法书和词典掌握了一门外语" 英文翻译 :    she has mastered a foreign language by aid of a grammar and dictionary
• "最好学一门外语" 英文翻译 :    better learn a foreig language
• "把英语作一门外语说" 英文翻译 :    speak english as a foreign language
• "熟练地使用一门外语" 英文翻译 :    manipulate a foreign language
• "学习一门外语是很有趣" 英文翻译 :    it’s fun to learn another language
• "暂时困难" 英文翻译 :    teething troubles
• "会两种语言的（母语和一门外语）" 英文翻译 :    bilingual
• "制造惊喜让他们发现" 英文翻译 :    hide surprises for them to find
• "困难的" 英文翻译 :    burdensome; difficile; difficult; hard; heavy; labourious; mad; man-sized; painful; pinched; rugged; staggering; tough; troublesome; uncomfortabl; untoward; uphill
• "难的，困难的" 英文翻译 :    difficult
• "他们发现这份遗嘱被窜改了" 英文翻译 :    the falsification of the testament was discovered by them
• "他们发现中国人都很幸福快乐。" 英文翻译 :    they find the chinese people to be happy and cheerful
• "发现要找的人时" 英文翻译 :    there he is
• "发音困难的" 英文翻译 :    crackjaw
• "呼吸困难的" 英文翻译 :    dyspneal; dyspneic; dyspnic; dyspnoeic

• They found if hard to master a foreign language
  他们发现要掌握一门外语时困难的