1.barriers to 障礙

例句：So in the NRC world these are the multiple barriers to public exposure and public risk.

在NRC的世界里，這些都是多重障礙,對于公眾暴露和公眾危險來說1cM0[PHh58i。

2.sign language 手語

例句：Sign Language Recognition is a communication way between the deaf and the health.

手語識別是聾人與健全人自然交流的途徑，是手勢識別的重要研究內容4aVop+CIotzDFy1L@e。

3.seek help 尋求幫助

例句：If they cannot be roused, immediately seek help.

如果不能被喚醒，立即尋求幫助#qn_h_Ay|HQ!L~C[6。

4.put in touch with 與…聯(lián)系

例句：Ask to be put in touch with other students from your country or who speak yourlanguage.

要和來自家鄉(xiāng)或說你本國語言的人保持接觸tOUW4eiCe%lsF5。