球: ball, sphere, globe...
领土: territory...
导致: to lead to, to create, to cause, to bring about...
解围: to lift a siege, to help sb out of trouble or embarrassment...
拿手: expert in, good at...
翼: wing, area surrounding the bullseye of a target, to assist, one of the 28 constellations of Chinese astronomy, old variant of...
为期: (to be done) by (a certain date), lasting (a certain time)...
失踪: to be missing, to disappear, unaccounted for...
淀粉: starch, amylum C6H10O5...
弟弟: younger brother...