x字母开头的单词有哪些

The rooms are crammed with humming Xerox machines.

那些房间里摆满了嗡嗡作响的.复印机。

Could you xerox this letter, please?

请复印一下这封信好吗？

He kept the original copy and gave her only a Xerox.

他保留下原件而只给了她一份复印件。

Secondary xylem consists of pitted vessels, parenchyma fibers and rays.

次生木质部由孔纹导管、薄壁组织及射线所组成。

The xylem of ferns and conifers contains only tracheids.

蕨类植物和针叶树的木质部仅含有管胞。