1. What scientists know so far about the disease points to it being a combination of a persistent viral infection, a chronic autoimmune disorder and lingering damage to some tissues caused by the original covid-19 infection.

so far 到目前為止

How many driving lessons have you had so far?

你到目前為止上過多少節駕駛課了？

2. Dedicated long-covid clinics will speed things up.

speed up 加快

This system helps speed up access times.

這個系統有助于加快存取時間4IlF2zMo|=。

3. If governments miss the boat, millions of young and mid-career workers could permanently drop out of the labour force.

miss the boat 坐失良機

We shall have to make up our minds very soon, or we'll miss the boat.

我們必須立即拿定主意，否則就會坐失良機MMMcx]B&UzwME。

4. But that came out of the blue.

out of the blue 突然

One of them wrote to us out of the blue several years later.

數年后他們中的一人突然給我們寫了一封信LFnuEuy4P+56Gt2BQ。