1.enough to 足以

That's not enough to trigger renewed recession.
這個(gè)問(wèn)題不足以導(dǎo)致美國(guó)經(jīng)濟(jì)重新陷入衰退。

It tells you enough to get started right away.
它告訴你的東西足夠讓你立刻開(kāi)始使用。

2.require to 要求

Drain piping may require to be protected against freezing.
泄水管要求有防凍保護(hù)措施。

These objects require to be quarantined on the spot.
這些物品需要進(jìn)行現(xiàn)場(chǎng)檢疫。

3.abide by 遵守；信守

The rules of the race lay out certain regulations which each musher must abide by.
比賽規(guī)則制定了特定的管理辦法，每位駕駛者都必須遵守。

In his separation agreement, hurd agreed to abide by section 7 for two years.
在赫德的離職協(xié)議里，他同意兩年內(nèi)遵守第七章節(jié)的內(nèi)容。

4.insist on 堅(jiān)持，強(qiáng)調(diào)

Customize the product or insist on the cookie-cutter model?
按客戶的需求定做產(chǎn)品或者堅(jiān)持些模型？

I insist on quietness in my room.
我要求在我的房間里要安靜。