英语流利说-20181209

bow, 弓；鞠躬 | to bow sb. | to take a bow

kayak, 皮艇

set foot on, 进入，踏上

sealed-off, 封闭的，隔离的 | to seal an envelope

inhabit, 居住，栖居

enigmatic, 神秘的，费解的 | an enigmatic smile

isolated, 孤立的，分离的

tribe, 部落，宗族

interaction, 交流，来往 | the interaction between teacher and student

sentinel, 哨兵

push ahead, 继续前行 | The govenment has decided to push ahead with its reform programme.

tribesman, 部落居民

misplaced, 错误的，不合时宜的

off limits, 禁止入内的 | The site is off limits to the public.

bestow, 赠与，授予 | to bestow an honour on sb.