同義短語是arrive at ，例如：

1.You must arrive at the time stated.你必須在規定時間到達。

2.As soon as you arrive at your destination, step out of the aircraft and reset your wristwatch.你一到達目的地，就走出飛機並重新設置手錶時間。

3.We have subtracted$ 25 per adult to arrive at a basic room rate.我們已給每位成人房客減去了25美元，這就是基本的房費價格了。

中文意思是，到達，get to 為及物性動詞短語，同義短語是arrive in+大地方,arrive at+小地方,reach，

例如，

到達醫院時她被宣告已經死亡。She was pronounced dead on arrival at the hospital.

碰巧運氣好，我們剛好同時到達。

By a happy coincidence , we arrived at exactly the same time.

她趕在郵局關門之前到達郵局。

She rushed to get to the post office before it closed.

used to do sth意為過去常常做某事，並且和現在形成對比，現在也不那樣做了。此處to是動詞不定式符號，所以後接動詞原形。如：i used to play basketball, but now i don't have time to do it.

get used to doing sth意為習慣做某事，此處to為介詞，後接動詞ing形式。

一：used to do這個短語結構的意思是“過去經常……”，含有現在已經不是過去那種情況了。to do是動詞不定式。例句：

1.Tom used to be shy in public.

2.Mary used to play the guitar.

二：get used to doing這個短語的意思是“習慣於……，養成……習慣”，get是系動詞，to是介詞，doing是動名詞。

例句：

1.Lucy gets used to getting up early.

2.Alice has got used to doing anything by herself.

3.Mary got used to the life in the countryside.

瑪麗習慣了農村的生活。