Indenturing
v. <史>以契约束缚（学徒）( indenture的现在分词 )
🗣️ 情景例句
He studied harder to improve his English.
他更加努力提高英语水平。
If at first you don't succeed, try, try again.
初试不成功，努力勿懈怠。
Really? Wonderful!
真的吗？好极了！