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进，拼搏

勤奋，奋进，拼搏，，，，

其高级替换有：

fleetly、at a high rate、at a great lick、at express speed等等，

rapidly意思是快速地，迅速地

例句：Should you look at the same word in rapid succession or look at the word and then have some delay before you look at it again?

你是连续快速地看同一个单词，还是先看一个单词然后再过段时间再看一次？

替换词: often

adv. 常常，时常；往往，大多
She doesn't often wear heels.

她不常穿高跟鞋。

She often goes around barefoot.

她常常光着脚到处跑。

He often wore a baseball cap.

他经常戴顶棒球帽。

We often slept under the stars.

我们经常在夜空下露宿。

I often go running before work.

我常常在上班前跑步。

Always的替换词是usually

可以用usually、often来替换

例如all the time，表示一直