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1.according to 根据
例句：They do everything according to Hoyle.
他们一切都按照规定办理。
2.participate in 参加
例句：All the teachers participated in the children's games.
所有的教师都参加孩子们的游戏。
3.homeland security 国土安全
例句：We spoke to homeland security.
我们跟国土安全部谈了。
4.personal care 个人护理
例句：The multifunctional milk glycerides for personal care products are researched in this paper.
本文对多功能乳甘油酯在个人护肤品中的应用进行了研究。
