He helped her close the cases up, and then he secured the canvas straps as tight as they would go.

他帮她关上箱子，然后他又把帆布带尽可能缚紧。

《柯林斯英汉双解大词典》

He helped her close the cases up, and then he secured the canvas straps as tight as they would go.

他帮她关上箱子，然后他又把帆布带尽可能缚紧。

《柯林斯英汉双解大词典》