例句與造句

1. Francisco Mattis purchased the prototype and manufacturing rights and founded Super Rotor ( now Montalva ) of S鉶 Paulo to produce the aircraft . Refinements for serial production as the AC . 4 included an extra reinforcing strut for the rotor mast and a larger tail fin.
2. It's difficult to find reinforcing struts in a sentence. 用reinforcing struts造句挺難的