The foreign debt of China, by June 2015, stood at around US$ 1.68 trillion, a lot higher now .. thats why "somewhat" GOT IT?
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NOT AT ALL. You're talking about the Chinese government debts in the same breath as the US and Japanese government debts, which stand at 100+% and 200+% of their respective GDP. China's government debts, including both central government and local government debts stand at somewhere around 60%. The USD 1.68 trillion you quoted is a very small part of the total government debts and can be easily covered by China's foreign reserve, if necessary.
If you still insist using "somewhat," you should use it the other way around, i.e., Chinese government debts are _somewhat_ foreign debts. It'd be a bit weird though.
GOT IT?