橡树林学校提供精选的封闭式esl课程，鼓励他们取得中级英语水平。
Oak Grove offers a highly selective ESL Immersion Program to motivated students with intermediate English proficiency.
《朗文英语语法》是内容丰富而全面的现代英语语法参考书，适合中级至高级英语水平的广大读者。
"Longman English grammar" is a rich and comprehensive reference book of modern English grammar for intermediate to advanced level of English readers.
本课程适合具有中级以上英语水平能力的学员。
The course is suitable for students with an upper-intermediate level of English.
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