重点讲解：
1.take hold 固定下来；抓紧
例句：Let me, through you, sir, request this delegation to take hold of this subject.
我要通过你，先生，要求与会代表们抓紧这个议题。

2.glide through 滑过
例句：When emperor penguins glide through the water, tiny air bubbles trail behind. On land, they are much less graceful.
这是企鹅们滑入水中的一刻，身后带着一串长长的气泡。在陆地上，他们可远没有这么优雅。

3.a moth to a flame 飞蛾扑火
例句：A moth to the flame. You'd lose all control.
飞蛾扑火，场面会完全失去控制。

4.be controlled by 被…控制
例句：When possible, make sure that the data you send won't be controlled by an attacker.
只要可能，请确保您发送的数据不会受到攻击者的控制。