Be sure to stand with your knees slightly____(bend)为什么填bent?理由?还有怎么翻译?

Be sure to stand with your knees slightly____(bend)为什么填bent?理由?还有怎么翻译? be sure of 和 be sure to be sure to do 用Be sure to、Be sure to do 、Be sure of、Be sure that 造句 be sure to do sth. be sure to go there they are sure to be make sure,be sure of ,be sure to do,for sure的区别 be sure of be sure to do 的区别· 辨析 be sure of 与be sure to do sth be sure to 和be sure of 区别和用法 be sure to/be sure of举例区别 be sure to 与 be sure of 的区别 Be sure of与Be sure to有什么区别 祈使句时 是to be sure 还是 be sure 辩析be sure to do sth be sure to do sth be sure that+从句 be sure to be there on 同上 make sure to do 与be sure to do