have someone's back

"We prepared the spacecraft for takeoff."

"Her knowledge of French helped her communicate with her French pen pal. "

"My ever-growing to-do list makes me feel overwhelmed. "

"The wealthy have in our town often send their children to private schools. "

"Do you need a gift for that special someone?"

"I need some help with my homework."

"He is willing to help his younger sister with her homework. "

"The bridge's sturdy support beams prevented the structure from collapsing. "

"It is a just assessment of the facts."

"Could you please scratch my back?"

"The student defended her answer during the debate, arguing it was correct. "

"My family's biggest need right now is a new car. "