To begin with, cars contribute to air pollution.(首先，汽車加劇了空氣污染。)

To begin with, as the saying goes, the best bosses understand the art of delegation.(首先，正如俗話所說，最好的老板懂得授權(quán)的藝術(shù)。)

But as with any study of this kind, it was unclear if that was the cause—or if breakfast-skippers were just more likely to be overweight to begin with.(但是，就像任何這類研究一樣，原因尚未可知——即，還不清楚不吃早餐是否能導(dǎo)致他們更容易超重。)

To begin with, only by taking actions can we find the best way to solve those problems we are facing, but as a bystander, we can learn nothing meaningful.(首先，只有采取行動，我們才能找到解決這些問題的最好方法，但作為旁觀者，我們可以學(xué)到任何有意義的東西。)

Frankly, I should never have done that to begin with.(坦白說，我開始，就不該那么做。)

We'll go slowly to begin with.(我們開始時會慢慢來的。)

These are likely to be modest steps, to begin with.(所有這些可能只是開始時候邁出的一小步。)

Ordinary superconductivity is weird to begin with.(普通超導(dǎo)現(xiàn)象的出現(xiàn)就是奇異的。)

To begin with, they will have to find out whether life has ever existed on the planet of Mars in the past.(首先，他們必須搞清楚火星上是否曾經(jīng)存在過生命。)

If you are hoping to form a new relationship tread carefully and slowly to begin with.(如果你希望建立一種新的關(guān)系，開始時就要小心緩慢行事。)