shopping, stopping, fitting, cutting, putting, beginning, getting, forgetting, hitting, spitting hiccupping 打嗝 splitting 分裂 shut -- shutting 关闭 win --winning 赢drop -- dropping 落下 dig -- digging 挖 plan -- planning 计划 prefer -- preferring 更喜欢refer -- referring 查阅,参考 let -- letting 让 step -- stepping 踩,踏 trip -- tripping 绊倒 rob... |