what is the meaning of the [as] here? "In addition to fiber, you also lose some polyphenols and antioxidants found in the pith of citrus fruits and skins of fruits and vegetables that may not be extracted [as] effectively in home juicing" here is not [as..as], for an [as] is alone. what does that mean? this [as] looks like a [very].

Is this [has been being] correct or wrong? [My focus has been and will always be on my children…] can this sentence be rewritten as [My focus has been being on my children…] Is this rewritten one correct or wrong, proper or weird?

Can [not only … but also] be written as [not … but also]? Can [not only … but also] be written as [not … but also]? how to understand the [not … but also] sentence here. [here is the context] Stress can’t always be mitigated, but bad habits can be. Many of the things you do routinely might be contributing to your hair loss. Consider these big ones, according to Dr. Green: 【Not shampooing enough】, but also shampooing too often. (Twice a week should suffice, with a specialized shampoo for thinning hair.

what does this [that] refer to? "Productivity at its mass-market brands is woeful, and 【that】 in a segment where margins are anyway slender. " what does this [that] refer to? === here is the context "VW’s investors have long grumbled that its vast bulk has not delivered high profits or helped its share price. Mr Diess wants to raise both. Before the “dieselgate” emissions scandal the firm’s bosses bet on scale. VW made nearly 11m vehicles last year. Putting growth before profits also suited its mighty unions, for which preserving jobs is paramount. As a result, VW disproportionately relies on its two premium brands, Audi and Porsche, for earnings. Productivity at its mass-market brands is woeful, and 【that】 in a segment where margins are anyway slender. "