To betray a friend is a base action.

背叛朋友是卑劣的行为。

youdao

But if we want to base action on evidence and answers, we are only at the start.

但如果我们想以证据和答案作为行动基础，这才刚刚开始。

youdao

The forward movement, the melting at the base of the glacier where it meets the ocean, and waves and tidal action cause blocks of ice to break off and float out to sea.

冰川的向前移动，其底部与海洋接触处的融化，还有波浪和潮汐运动，导致冰块断裂，漂浮到海上。

youdao

But the current California action registers only the objects, not Tranquility Base.

VOA: special.2010.03.02

Second, I will take some time taking you through what you have designated as the evidence to demonstrate that there are no clear facts on which to base such an action.

CNN: House Judiciary Committee hearing,

Thus, companies lack the necessary in-depth insights into their fan base needed to take action and capitalize on the marketing opportunities.

FORBES: How Companies Can Make The Most Of Their Facebook Data

The demands for action in Libya appear to base foreign policy on CNN, responding to crises which receive the most international media coverage.

FORBES: Libya: Another Unnecessary War Of Choice