1、Itisimportant或essential或crucial或significantforsomeonetodo...对某人来说,做某事是重要要的
2、Thereislittledoubtthat....毫无疑问
3、beputunderthreatof遭受某物的威胁
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4、Thosewho...那些...的人
5、Thereasonwhy...isthat...原因是...
6、Wemustkeepinmindthat...我们必须牢记
7、enablesomeonetodo...使某人能够做某事
8、Itisnoexaggerationstosaythat...毫不夸张的说