求翻译：我们常把老师的奉献比作春蚕到死丝方尽，蜡炬成灰泪始干。人间最伟大的奉献也在于此，教师把自己所学的知识传授给学生，一批批的学生成为国家栋梁而奔赴社会建设的洪流。是什么意思？

We often dedication of the teachers died compared Chuncan to wire side to make wax torch ashes tears dry. The world greatest devotion is also here, the teachers learned to teach to students, groups of students to become pillars of the nation went to the social construction of flood.

We are often the teacher's dedication to the Dead Sea than to spring silkworms, wax to do their utmost to torch into gray Tears began. Earth, the most great dedication, a teacher was also the case with the knowledge of the students themselves, and a large number of students taught the students to be

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We offer teacher often compared to spring silkworm to the death, laju as tears began. Most great dedication to this, teachers learned knowledge to their students, groups of students to become pillars of the country and to go to the torrent of social construction.