Whethe author says “You will miss smile”, he means ___________.
·you will fail to notice that Americans are pleasant and happy
·you will be puzzled why Americans do not smile at you
·you will feel that Americans do not seem very friendly
出自:运营管理

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块