Translate c-api/call.po (#201)

* translate `c-api/call.po` * Apply suggestions from code review Co-authored-by: Steven Hsu <hsuhaochun@gmail.com> * Apply suggestions from code review Co-authored-by: Steven Hsu <hsuhaochun@gmail.com> Co-authored-by: Steven Hsu <hsuhaochun@gmail.com>

Author: mattwang44