... know when to plant and harvest. Observance (n): sự tu n theo, sự tu n thủ, nghi thức, nghi lễ. There will be numerous parades and displays of the fireworks in observance of Independece Day. Persecute ... vợt qua đợc. Ví dụ: The students are happy that they passed their exams. PAST (adj) : 1- đã qua, dĩ vãng. Ví dụ: This past week has been very hectic for the students returning to the university. ... intelligent that he received good grades without ever having to study. INTELLIGIBLE (adj) : dễ dàng, dễ hiểu. The science teachers explanations were so intelligible that students had no problems doing...