To prevent gum disease and other oral health problems, schedule regular dental cleanings and exams — generally once or twice a year.

预防牙龈疾病等口腔问题，应该定期洗牙和检查牙齿——一般为一年一到两次。

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Party B is expected to teach and arrange tests or exams according to the teaching plans, syllabus and schedule of the college.

应按照学校的安排、教学大纲和教学进度表授课和考核。

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Party B is expected to teach and arrange tests or exams according to the teaching plans, syllabus and schedule of the college.

应按照学校的安排、教学大纲和教学进度表授课和考核。

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