The first two lines below should have the first five letters of the English alphabet on either side of the first five letters of the Hebrew alphabet, with spaces in between the three runs of letters. These two examples use implicit directionality.
ABCDE אבגדה ABCDE
ABCDE אבגדה ABCDE
The next two lines below should have the first five letters of the English alphabet on either side of the first five letters of the Hebrew alphabet, with two spaces on the left of the Hebrew letters and no spaces on the right of the Hebrew letters. These two examples use explicit embedding directionality.
ABCDE אבגדה ABCDE
ABCDE אבגדה ABCDE