CSYMiracle
in front of :在物体外面的前面。 in the front of :在物体里面的前面。 a lot of = lots of (修饰可数与不可数名词) many :只可修饰可数名词 much :只可修饰不可数名词 be good at doing sth :擅长做某事 be good with sb :对某人好 help sb (to) do sth :帮助某人做某事 help each other :互相帮助 when I grow up : 当我长大以后 tell sb to do sth :告诉某人做某事 tell sb about sth :告诉某人有关的事 ask sb to do sth :叫某人做某事 buy sth for sb :为某人买某物 例:I buy a white sweater for my mother . buy sth from sb : 从某人处买来某物 例:I buy a white sweater from clothes store . sell sth to sb :卖某物给某人