1.   Additional complexities are involved if league tables contain studies from several countries.

2.   Each layer is brushed with a rum syrup that helps keep the cake moist and adds additional complexity.

3.   The decision whether to treat or not takes on an additional complexity in cases of sexual assault.

4.   Using their offspring to recreate the original breeding adds additional complexity and risk.

5.   Each new generation of so-called dynamic random-access memory chips requires additional complexity and increasingly expensive equipment capable of etching ever-tinier circuits on the chips.

6.   Each new generation of so-called dynamic random-access memory chips requires additional complexity and increasingly expensive equipment capable of etching ever-tinier circuits on the silicon chips.

7.   That one, scheduled for October, may include some additional complexities, such as extra decoys aboard the target missile.

8.   That test, scheduled for October, may include some additional complexities, such as extra decoys aboard the target missile.