usually后面加什么介词
usually后面一般加动词而不是介词。
She usually goes to work by bike except on rainy days.
除了雨天之外，她总是骑自行车上班。
He usually watches TV the lights in the evening.
在晚上，他经常亮着灯看电视。
I usually play tennis with my friends.
我通常和我的朋友们打网球。
On Sundays, I usually play volleyball.
星期天，我通常打排球。
I\'m usually home by 6 o\'clock.
我一般6点钟回到家。
How long does the journey usually take?
这段旅程通常需要多长时间？