我的一位朋友有幸留学日本研究中日比较文学。在日本,他遇到了不仅对中国友好热情,而且在学问上造诣颇深的好老师。其中一位被他称为恩师的教授名叫长谷川泉。这位老师与我的朋友在“解惑授业”之际,曾赠与写有“啐啄”二字的条幅。每当看到它,我的朋友就激动不已。日文之“啐 A friend of mine was lucky enough to study in Japan to study Sino-Japanese comparative literature. In Japan, he met a good teacher who not only had a friendly and friendly atmosphere toward China, but also learned a lot from his studies. One of the professors whom he calls a mentor is Hasegawa Spring. The teacher and my friend, on the occasion of “Interpreting Teaching,” presented a banner with the words “啐 啄 二”. Every time I see it, my friend is thrilled. Japanese "啐