那段的原文在此
San Francisco is about the limit of the A350's reach in North America, from
Taipei. Singapore Airlines flies the A350 to San Francisco from Singapore –
much further south than Taipei – but with A350s that have a higher maximum
take off weight.
San Francisco and Vancouver are China Airlines' only North American destinations
within normal range of the A350, so China Airlines has exhausted its A350
network opportunities in North America unless it takes higher take-off weight
aircraft, or hurts economics with one stop services or payload restrictions.
Los Angeles, where China Airlines flies twice daily, is too far for the A350
year round. China Airlines, unlike EVA Air, does not serve Seattle, which
would be within A350 range.