（在职业或事业中）处于首要地位

at the top of the heap───在堆的顶端

at the top of the pile───在那堆东西的顶端

at the top of the tree───（在职业或事业中）处于首要地位

at the bottom of sth───在某物的底部

at the drop of a hat───立即

be at the top of the tree───在树的顶端

at the end of the day───最终；到头来；不管怎么说

at the risk of sth───冒着某事的危险

at the best of times───adv.在最有利的情况下

books node at the top of the tree has two child book tags.───树顶部的books节点有两个book子标记。

you see those birds at the top of the tree?───你看到树梢上的那些鸟了吗？

We also put an angel or a star at the top of the tree.───我们也把天使或者星星挂到树的顶部。

Oddly, he remarked, he had never felt "more secure, more certain of myself" , than when he was in the White House, at the top of the tree.───他自己评价道：“奇怪地是，与过去他在权力巅峰——当总统时相比，现在的他，感受到从未有过的安全感和自我肯定。”

I mean we have to put up the lights and Christmas balls. We also put an angel at the top of the tree.───我的意思是我们得把灯和圣诞球挂上，还要在树尖上放一个天使。

I also looked at the top of the tree, I guess those high above a certain delicious apple, but I also picked less than how hard they try.───我又看着树的顶部，我猜想那些高高在上的苹果一定好吃，可是我怎么努力也摘不到。

At the top of the tree, the leaves grow out of the branches. the leaves receive sunlight to help the whole tree grow.───在树的在顶部叶子的分支机构。叶接收阳光帮助成长的整棵树。

They used to keep watch at the top of the tree during the war.───在战争期间他们通常在树顶上放哨。

At the top of the tree, many families put a star The star goes at the top. I think I need to stand on a chair!───在树的顶端，许多家庭都会悬挂星星。星星在树顶，我觉得需要站在椅子上。