English Mastery is offered to first to sixth-graders, and is taught by a Texas school certified American teacher.
英文写作班是提供给一至六年级同学，由持有德州教师执照的美国老师指导。
When we think about the long process of our English study and the level of our mastery of this language that we have reached, we should say that the input and output ratio is too low.
想想我们学习英语的漫漫之路和我们对英语掌握的程度，应该说我们的投入与产出比太低了。
He's right. If you use this in your daily life you will stun people with your mastery of English.
他是对的。在日常生活中，如果你使用这个句子，人们将会对你掌握英语的程度目瞪口呆。
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