due to由于，因为
例句：Her absence is due to illness.
她因病缺席。
2. Doctors indicated that his symptoms may be related to the formaldehyde in his car.
relate to涉及, 关系到…
例句：The lawyer read all the papers relating to the case.
律师阅读了与该案有关的全部文件。
3. The standards not only apply to new cars, but also used cars.
apply to适用于
例句：The law applied to all persons.
这项法律适用于所有人。
4. Insiders pointed out that the guide is the first car air quality standard to fill the blank for China's indoor air quality standards.
point out指出
例句：He pointed out that there was little chance of success.
他指出很少有成功的机会。
5. In-car air pollution mainly comes from three sources.
come from由…造成, 源自
例句：Knowledge comes from practice.
知识来自于实践。
6. Some experts say the guide will cause manufacturers to pay more attention to the interior materials and processes and attach more importance to the air quality inside the vehicle.
pay attention to注意，关心
例句：No attention was paid to his advice.
他的建议没有引起注意。
