and so on/forth
释义：两个固定搭配的意思完全一致，即对应中文中的“等等”。在留学文书里经常用它们来结束一个序列，表示之前所列举的项目只是代表而非序列的全部。
例句：
He told me about all his health problems, including his arthritis and so on.
Within an hour we saw radiation from it. This is energetic, subatomic particles, electrons and protons and so forth, and that built up pretty steadily and stayed high for days.