help each other：互相帮助（基础高频短语）

举例说明 ◦ For instance：例如（=“For example”，更偏书面） 例：For instance, we can organize a workshop to share skills. 2. 日常协作相关 ◦ help each other：互相帮助（基础高频短语） ◦ send in articles：投稿文章（“send in”表“提交、寄送”，例：send in applications 提交申请） 3. 费用/赞助描述 ◦ It's free to [人群]：对某人群免费 ◦ be paid for by [主体]：由某主体支付/赞助 例：The event is paid for by the local government.