电视信号在天线上感应的电压约为0.1mV= V.经验证明只有 的电压对人体来说是安全的;而在我国家庭电路的电压是 V。
The (礼貌的)you are, the more others will like you.
Being healthy means keeping everything (好)balanced.
Cooking is one of David's (爱好).
Guangzhou, a modern and developed city, is in the (south)part of China.
Mr Li's job is to make sure everything in our school runs (smooth).