The course is variable, usually slowly progressive and less severe than the AD forms with earlier onset.

病程多不相同，常呈缓慢进行性且没有早发型亚历山大病严重。

youdao

This combined with a slowly recovering ad spending environment, CBS is starting to see an improvement in pricing.

FORBES: Advertising Turnaround Takes CBS To $25 For Starters

"Slowly but surely lots of crumbs ad up to a cake, " wrote another women's sports pioneer, Billie Jean King.

CNN: Augusta National Golf Club admits first female members

But it acknowledges that it has moved slowly with the small-business ad service to make sure it's just right.

WSJ: Small Firms Say LinkedIn Works, Twitter Doesn't