The first step is to add the two buttons (lines 28 to 38 in listing 5) that expand or collapse all the tree’s items.

第一步是添加两个按钮（清单 5 中的第 28 - 38 行），用于展开或折叠树的所有项目。

youdao

And the 38-year-old said the step-up to league football has provided his current crop of players with an extremely testing challenge.

BBC: Buckle wants to strengthen squad

Terry ended up getting 38% of shares cast against his election which is a very high number and he decided to step down a few days after the vote was announced.

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