我们在人陪同下穿过一条低矮的门道。We were escorted through a low doorway.她必须低头通过低低的门道.She had to duck to get through the low doorway.技术革新的门道很多.There are all sorts of possibilities for technical innovation....
Carbon, hydrogen and oxygen combine chemically to form carbohydrates and fats.碳、氢、氧化合形成碳水化合物和脂肪。The medicine chemically affects your physiology.这种药会通过化学作用影响生理机能。Many smokers who are chemically addicted to nicotine cannot...