Meaning of gòng tóng:
共同
common; joint; together; collaborative
Wǒmen yǒu xǔduō gòngtóng de xìngqù.
我们有许多共同的兴趣。
We have many common interests.
Wǒmen yǒu yīgè gòngtóng de mùbiāo.
我们有一个共同的目标。
We have a joint goal.
Tāmen gòngtóng wánchéngle zhège xiàngmù.
他们共同完成了这个项目。
They completed this project together.
Tāmen yǒu yīgè gòngtóng de mùbiāo.
他们有一个共同的目标。
They have a collaborative goal.
jointly
Wǒmen xūyào gòngtóng nǔlì shíxiàn mùbiāo.
我们需要共同努力实现目标。
We need to work jointly to achieve the goal.