Learn Chinese Grammar:尽管(jǐnguǎn=even though) vs. 虽然(suīrán =even though) :

When it means "even though", 尽管(jǐn​guǎn) is stronger in meaning and tone than 虽然(suīrán). 尽管 indicates that in spite of a certain fact, it makes no difference with the prior situation, 尽管and 还是 should be used together. 虽然 may or may not have this implication.

Example 1:

Even though my body is abroad, but my heart is still at home.

a. 尽管(jǐn​guǎn =even though)我人(wǒ​rén= my body)在(zài=at)国外(​guó​wài=abroad)，但(dàn=but)我(wǒ=I)心(xīn=heart)还是(hái​shi=still)在(zài=at)家(jiā​=home)的(de)。(stronger than 虽然)

b. 虽然(suīrán=even though) 我人(wǒrén= my body)在(zài=at)国外(​guó​wài=abroad)，但(dàn=but)我(wǒ=I)心(xīn=heart)还是(hái​shi=still)在(zài=at)家(jiā​=home)的(de)。

Example 2:

Even though I am abroad, but I never get homesick.

a. 虽然(suīrán=even though)我(wǒ = I)在(zài=at)国外(​guó​wài=abroad)，但(dàn=but)我(wǒ=I)从来不(cóng​lái​bù=never)想家(xiǎng​jiā=homesick)。

b. 尽管(jǐn​guǎn=even though)我(wǒ​= I)在(zài=at)国外(​guó​wài=abroad)，但(dàn=but)我(wǒ=I)从来不(cóng​lái​bù=never)想家(xiǎng​jiā=homesick)。- Wrong Sentence (The sentence should contains the "still" meaning - because 尽管and 还是 should be used together).