🗣️ 情景例句
Are the beaches safe for swimming?
在这儿的海滩游泳安全吗？
My brothers must help with the house work at home.
我的兄弟在家里必须帮忙做家务。
As a reasonable guess, they might, on an average, be 100 light years away.
据合理推算，外星人离我们平均距离也有100光年之远