Withlasersscientistscanprobemanyphysicalprocesses,suchascombustion,oncebeyondourken.视野
A、understandingSome animals pant and sweat to speed evaporation of body moisture and thus cool themselves.
DoubleEagleinthefirsttransatlanticballoon,wasgreetedbyavidcrowdsinFrance.
In literature, caricatures讽刺画 usually contain verbal exaggeration through which the writer achieves comic and often satiric 讽刺effects.
In calculating the daily calorie requirements for an individual, variations in body size, physical activity, and age should be taken into account.
Thecontrolsofmostmodernairplanescanbeoperatedeithermanuallyorautomatically.