混淆
emergency/emergence
custom/customs/customer
verbal/oral 口语的 adj.
emission/mission
shelter/alter/alert
```
retain/retail
success/successive
over/oven
```
混淆
emergency/emergence
custom/customs/customer
verbal/oral 口语的 adj.
emission/mission
shelter/alter/alert
```
retain/retail
success/successive
over/oven
```