为了保证准时交付,请确保材料可以在22日前到达,我们需要3天左右的时间报关.
In order to delivery on time,please make sure the materials to be arrived before Jan 22, as it will take us about 3 days to have custom declaration.
注释：
1.在商务英语中,一般用to be 表将来
2.报关/清关：用declare custom/clear custom,apply to也对,但不常用,另外custom不加-s