導(dǎo)讀:本期單詞insecure(不安全的,不堅固的,不牢靠的),配以音頻,全方位學(xué)習(xí),加入留言打卡戰(zhàn)隊的同學(xué)可邀請小伙伴一起加入,互相督促,共同進步~
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