1003、The center of gravity is the point an airplane would balance if suspended 重心是飞机悬空时保持平衡
的点

272、This will be limited to the forward and aft edges of the windshield due to the bottom edge not being
visible and the top edge having the bus bar in the way.
这将是有限的向前和尾部边缘的风挡玻璃由于底部边缘不可见和顶部边缘有母线在路上。

271、Airworthiness Directive is procedure that must be used when performing maintenance on an aircraft

270、The system interface circuits adapt to the physical properties of the connected systems.

269、In a high concentration, this material is poisonous.

268、The flight crew can use the flight director commands to control the attitude of the airplane.

267、Do test B as an alternative to test A. 做测试 B 作为测试 A 的替代方案。

266、Care must be taken not to damage the firewall cover.

265、The topic sentence is the first and most important sentence in a paragraph.

264、The laptop has three primary parts.

263、The writing rules cover aspects of grammar and style. The dictionary gives the general words that a
writer can use.