Perfects
v. 使熟练( perfect的第三人称单数 ); 使完全; 使…完美; 充分地指导（告诉）
🗣️ 情景例句
Can I help you?
我能帮你忙吗？
Children enter school at the age of five,don't they?
孩子们在5岁时入学吗？
I got a bad headache, and my nose is running.
我头痛得厉害，还流鼻涕。